Home / 30,218.48-41,704.32-18,284.76

Finding the Fourth Proportional to 30,218.48, 41,704.32 and 18,284.76

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Solution

The fourth proportional to 30,218.48, 41,704.32 and 18,284.76 is: 25,234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.48 : 41,704.32 = 18,284.76 : x
  2. Step 2: Convert to fraction form
    30,218.48/41,704.32 = 18,284.76/x
  3. Step 3: Cross multiply
    30,218.48x = 41,704.32 × 18,284.76
  4. Step 4: Simplify right side
    30,218.48x = 762,553,482.16
  5. Step 5: Solve for x
    x = 762,553,482.16/30,218.48
  6. Step 6: Final answer
    x = 25,234.67

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.