Home / 20,000.37-29,980.08-10,109.67

Finding the Fourth Proportional to 20,000.37, 29,980.08 and 10,109.67

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Solution

The fourth proportional to 20,000.37, 29,980.08 and 10,109.67 is: 15,154.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.37 : 29,980.08 = 10,109.67 : x
  2. Step 2: Convert to fraction form
    20,000.37/29,980.08 = 10,109.67/x
  3. Step 3: Cross multiply
    20,000.37x = 29,980.08 × 10,109.67
  4. Step 4: Simplify right side
    20,000.37x = 303,088,715.37
  5. Step 5: Solve for x
    x = 303,088,715.37/20,000.37
  6. Step 6: Final answer
    x = 15,154.16

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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.