Home / 28,099.22-42,155.10-10,569.20

Finding the Fourth Proportional to 28,099.22, 42,155.10 and 10,569.20

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Solution

The fourth proportional to 28,099.22, 42,155.10 and 10,569.20 is: 15,856.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.22 : 42,155.10 = 10,569.20 : x
  2. Step 2: Convert to fraction form
    28,099.22/42,155.10 = 10,569.20/x
  3. Step 3: Cross multiply
    28,099.22x = 42,155.10 × 10,569.20
  4. Step 4: Simplify right side
    28,099.22x = 445,545,472.14
  5. Step 5: Solve for x
    x = 445,545,472.14/28,099.22
  6. Step 6: Final answer
    x = 15,856.15

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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.