Home / 15,929.25-23,878.96-5,391.90

Finding the Fourth Proportional to 15,929.25, 23,878.96 and 5,391.90

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Solution

The fourth proportional to 15,929.25, 23,878.96 and 5,391.90 is: 8,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.25 : 23,878.96 = 5,391.90 : x
  2. Step 2: Convert to fraction form
    15,929.25/23,878.96 = 5,391.90/x
  3. Step 3: Cross multiply
    15,929.25x = 23,878.96 × 5,391.90
  4. Step 4: Simplify right side
    15,929.25x = 128,752,937.46
  5. Step 5: Solve for x
    x = 128,752,937.46/15,929.25
  6. Step 6: Final answer
    x = 8,082.80

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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.