Home / 25,781.40-38,635.20-14,664.60

Finding the Fourth Proportional to 25,781.40, 38,635.20 and 14,664.60

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Solution

The fourth proportional to 25,781.40, 38,635.20 and 14,664.60 is: 21,975.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781.40 : 38,635.20 = 14,664.60 : x
  2. Step 2: Convert to fraction form
    25,781.40/38,635.20 = 14,664.60/x
  3. Step 3: Cross multiply
    25,781.40x = 38,635.20 × 14,664.60
  4. Step 4: Simplify right side
    25,781.40x = 566,569,753.92
  5. Step 5: Solve for x
    x = 566,569,753.92/25,781.40
  6. Step 6: Final answer
    x = 21,975.91

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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.