Home / 19,688.10-29,532.15-10,356.90

Finding the Fourth Proportional to 19,688.10, 29,532.15 and 10,356.90

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Solution

The fourth proportional to 19,688.10, 29,532.15 and 10,356.90 is: 15,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.10 : 29,532.15 = 10,356.90 : x
  2. Step 2: Convert to fraction form
    19,688.10/29,532.15 = 10,356.90/x
  3. Step 3: Cross multiply
    19,688.10x = 29,532.15 × 10,356.90
  4. Step 4: Simplify right side
    19,688.10x = 305,861,524.34
  5. Step 5: Solve for x
    x = 305,861,524.34/19,688.10
  6. Step 6: Final answer
    x = 15,535.35

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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.