Home / 22,986.81-31,735.10-15,042.90

Finding the Fourth Proportional to 22,986.81, 31,735.10 and 15,042.90

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Solution

The fourth proportional to 22,986.81, 31,735.10 and 15,042.90 is: 20,767.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,986.81 : 31,735.10 = 15,042.90 : x
  2. Step 2: Convert to fraction form
    22,986.81/31,735.10 = 15,042.90/x
  3. Step 3: Cross multiply
    22,986.81x = 31,735.10 × 15,042.90
  4. Step 4: Simplify right side
    22,986.81x = 477,387,935.79
  5. Step 5: Solve for x
    x = 477,387,935.79/22,986.81
  6. Step 6: Final answer
    x = 20,767.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.