Home / 25,572.81-38,349.90-8,929.74

Finding the Fourth Proportional to 25,572.81, 38,349.90 and 8,929.74

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Solution

The fourth proportional to 25,572.81, 38,349.90 and 8,929.74 is: 13,391.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,572.81 : 38,349.90 = 8,929.74 : x
  2. Step 2: Convert to fraction form
    25,572.81/38,349.90 = 8,929.74/x
  3. Step 3: Cross multiply
    25,572.81x = 38,349.90 × 8,929.74
  4. Step 4: Simplify right side
    25,572.81x = 342,454,636.03
  5. Step 5: Solve for x
    x = 342,454,636.03/25,572.81
  6. Step 6: Final answer
    x = 13,391.36

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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.