Home / 25,787.60-38,717.40-16,485.20

Finding the Fourth Proportional to 25,787.60, 38,717.40 and 16,485.20

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Solution

The fourth proportional to 25,787.60, 38,717.40 and 16,485.20 is: 24,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.60 : 38,717.40 = 16,485.20 : x
  2. Step 2: Convert to fraction form
    25,787.60/38,717.40 = 16,485.20/x
  3. Step 3: Cross multiply
    25,787.60x = 38,717.40 × 16,485.20
  4. Step 4: Simplify right side
    25,787.60x = 638,264,082.48
  5. Step 5: Solve for x
    x = 638,264,082.48/25,787.60
  6. Step 6: Final answer
    x = 24,750.81

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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.