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Finding the Fourth Proportional to 30,001.87, 41,400.87 and 17,915.99

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Solution

The fourth proportional to 30,001.87, 41,400.87 and 17,915.99 is: 24,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,001.87 : 41,400.87 = 17,915.99 : x
  2. Step 2: Convert to fraction form
    30,001.87/41,400.87 = 17,915.99/x
  3. Step 3: Cross multiply
    30,001.87x = 41,400.87 × 17,915.99
  4. Step 4: Simplify right side
    30,001.87x = 741,737,531.60
  5. Step 5: Solve for x
    x = 741,737,531.60/30,001.87
  6. Step 6: Final answer
    x = 24,723.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.