Home / 39,984.57-60,013.14-21,280.36

Finding the Fourth Proportional to 39,984.57, 60,013.14 and 21,280.36

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Solution

The fourth proportional to 39,984.57, 60,013.14 and 21,280.36 is: 31,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984.57 : 60,013.14 = 21,280.36 : x
  2. Step 2: Convert to fraction form
    39,984.57/60,013.14 = 21,280.36/x
  3. Step 3: Cross multiply
    39,984.57x = 60,013.14 × 21,280.36
  4. Step 4: Simplify right side
    39,984.57x = 1,277,101,223.93
  5. Step 5: Solve for x
    x = 1,277,101,223.93/39,984.57
  6. Step 6: Final answer
    x = 31,939.85

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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.