Home / 20,147.99-30,222.28-7,000.67

Finding the Fourth Proportional to 20,147.99, 30,222.28 and 7,000.67

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Solution

The fourth proportional to 20,147.99, 30,222.28 and 7,000.67 is: 10,501.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.99 : 30,222.28 = 7,000.67 : x
  2. Step 2: Convert to fraction form
    20,147.99/30,222.28 = 7,000.67/x
  3. Step 3: Cross multiply
    20,147.99x = 30,222.28 × 7,000.67
  4. Step 4: Simplify right side
    20,147.99x = 211,576,293.23
  5. Step 5: Solve for x
    x = 211,576,293.23/20,147.99
  6. Step 6: Final answer
    x = 10,501.11

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.