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Finding the Fourth Proportional to 39,497.90, 59,245.01 and 9,915.08

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Solution

The fourth proportional to 39,497.90, 59,245.01 and 9,915.08 is: 14,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,497.90 : 59,245.01 = 9,915.08 : x
  2. Step 2: Convert to fraction form
    39,497.90/59,245.01 = 9,915.08/x
  3. Step 3: Cross multiply
    39,497.90x = 59,245.01 × 9,915.08
  4. Step 4: Simplify right side
    39,497.90x = 587,418,667.95
  5. Step 5: Solve for x
    x = 587,418,667.95/39,497.90
  6. Step 6: Final answer
    x = 14,872.15

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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.