Home / 39,865.08-59,686.88-20,083.66

Finding the Fourth Proportional to 39,865.08, 59,686.88 and 20,083.66

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Solution

The fourth proportional to 39,865.08, 59,686.88 and 20,083.66 is: 30,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.08 : 59,686.88 = 20,083.66 : x
  2. Step 2: Convert to fraction form
    39,865.08/59,686.88 = 20,083.66/x
  3. Step 3: Cross multiply
    39,865.08x = 59,686.88 × 20,083.66
  4. Step 4: Simplify right side
    39,865.08x = 1,198,731,004.38
  5. Step 5: Solve for x
    x = 1,198,731,004.38/39,865.08
  6. Step 6: Final answer
    x = 30,069.70

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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.