Home / 15,285.10-22,931.28-5,425.24

Finding the Fourth Proportional to 15,285.10, 22,931.28 and 5,425.24

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Solution

The fourth proportional to 15,285.10, 22,931.28 and 5,425.24 is: 8,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.10 : 22,931.28 = 5,425.24 : x
  2. Step 2: Convert to fraction form
    15,285.10/22,931.28 = 5,425.24/x
  3. Step 3: Cross multiply
    15,285.10x = 22,931.28 × 5,425.24
  4. Step 4: Simplify right side
    15,285.10x = 124,407,697.51
  5. Step 5: Solve for x
    x = 124,407,697.51/15,285.10
  6. Step 6: Final answer
    x = 8,139.15

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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.