Home / 39,133.47-58,648.28-21,318.43

Finding the Fourth Proportional to 39,133.47, 58,648.28 and 21,318.43

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Solution

The fourth proportional to 39,133.47, 58,648.28 and 21,318.43 is: 31,949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,133.47 : 58,648.28 = 21,318.43 : x
  2. Step 2: Convert to fraction form
    39,133.47/58,648.28 = 21,318.43/x
  3. Step 3: Cross multiply
    39,133.47x = 58,648.28 × 21,318.43
  4. Step 4: Simplify right side
    39,133.47x = 1,250,289,251.80
  5. Step 5: Solve for x
    x = 1,250,289,251.80/39,133.47
  6. Step 6: Final answer
    x = 31,949.36

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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.