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Finding the Fourth Proportional to 25,158.40, 37,737.60 and 21,702.40

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Solution

The fourth proportional to 25,158.40, 37,737.60 and 21,702.40 is: 32,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,158.40 : 37,737.60 = 21,702.40 : x
  2. Step 2: Convert to fraction form
    25,158.40/37,737.60 = 21,702.40/x
  3. Step 3: Cross multiply
    25,158.40x = 37,737.60 × 21,702.40
  4. Step 4: Simplify right side
    25,158.40x = 818,996,490.24
  5. Step 5: Solve for x
    x = 818,996,490.24/25,158.40
  6. Step 6: Final answer
    x = 32,553.60

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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.