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Finding the Fourth Proportional to 39,470.70, 59,207.87 and 9,888.79

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Solution

The fourth proportional to 39,470.70, 59,207.87 and 9,888.79 is: 14,833.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,470.70 : 59,207.87 = 9,888.79 : x
  2. Step 2: Convert to fraction form
    39,470.70/59,207.87 = 9,888.79/x
  3. Step 3: Cross multiply
    39,470.70x = 59,207.87 × 9,888.79
  4. Step 4: Simplify right side
    39,470.70x = 585,494,192.78
  5. Step 5: Solve for x
    x = 585,494,192.78/39,470.70
  6. Step 6: Final answer
    x = 14,833.64

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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.