Home / 39,938.47-59,876.14-19,937.69

Finding the Fourth Proportional to 39,938.47, 59,876.14 and 19,937.69

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Solution

The fourth proportional to 39,938.47, 59,876.14 and 19,937.69 is: 29,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,938.47 : 59,876.14 = 19,937.69 : x
  2. Step 2: Convert to fraction form
    39,938.47/59,876.14 = 19,937.69/x
  3. Step 3: Cross multiply
    39,938.47x = 59,876.14 × 19,937.69
  4. Step 4: Simplify right side
    39,938.47x = 1,193,792,111.14
  5. Step 5: Solve for x
    x = 1,193,792,111.14/39,938.47
  6. Step 6: Final answer
    x = 29,890.78

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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.