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Finding the Fourth Proportional to 39,570, 59,354.33 and 9,987.62

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Solution

The fourth proportional to 39,570, 59,354.33 and 9,987.62 is: 14,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570 : 59,354.33 = 9,987.62 : x
  2. Step 2: Convert to fraction form
    39,570/59,354.33 = 9,987.62/x
  3. Step 3: Cross multiply
    39,570x = 59,354.33 × 9,987.62
  4. Step 4: Simplify right side
    39,570x = 592,808,443.46
  5. Step 5: Solve for x
    x = 592,808,443.46/39,570
  6. Step 6: Final answer
    x = 14,981.26

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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.