Home / 39,490.96-59,239.54-13,195.78

Finding the Fourth Proportional to 39,490.96, 59,239.54 and 13,195.78

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Solution

The fourth proportional to 39,490.96, 59,239.54 and 13,195.78 is: 19,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,490.96 : 59,239.54 = 13,195.78 : x
  2. Step 2: Convert to fraction form
    39,490.96/59,239.54 = 13,195.78/x
  3. Step 3: Cross multiply
    39,490.96x = 59,239.54 × 13,195.78
  4. Step 4: Simplify right side
    39,490.96x = 781,711,937.14
  5. Step 5: Solve for x
    x = 781,711,937.14/39,490.96
  6. Step 6: Final answer
    x = 19,794.71

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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.