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Finding the Fourth Proportional to 40,603.30, 60,915.45 and 12,522.73

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Solution

The fourth proportional to 40,603.30, 60,915.45 and 12,522.73 is: 18,787.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,603.30 : 60,915.45 = 12,522.73 : x
  2. Step 2: Convert to fraction form
    40,603.30/60,915.45 = 12,522.73/x
  3. Step 3: Cross multiply
    40,603.30x = 60,915.45 × 12,522.73
  4. Step 4: Simplify right side
    40,603.30x = 762,827,733.18
  5. Step 5: Solve for x
    x = 762,827,733.18/40,603.30
  6. Step 6: Final answer
    x = 18,787.33

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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.