Home / 18,856.38-28,294.32-10,531.20

Finding the Fourth Proportional to 18,856.38, 28,294.32 and 10,531.20

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Solution

The fourth proportional to 18,856.38, 28,294.32 and 10,531.20 is: 15,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.38 : 28,294.32 = 10,531.20 : x
  2. Step 2: Convert to fraction form
    18,856.38/28,294.32 = 10,531.20/x
  3. Step 3: Cross multiply
    18,856.38x = 28,294.32 × 10,531.20
  4. Step 4: Simplify right side
    18,856.38x = 297,973,142.78
  5. Step 5: Solve for x
    x = 297,973,142.78/18,856.38
  6. Step 6: Final answer
    x = 15,802.25

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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.