Home / 28,233.56-38,963.23-15,658.31

Finding the Fourth Proportional to 28,233.56, 38,963.23 and 15,658.31

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Solution

The fourth proportional to 28,233.56, 38,963.23 and 15,658.31 is: 21,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.56 : 38,963.23 = 15,658.31 : x
  2. Step 2: Convert to fraction form
    28,233.56/38,963.23 = 15,658.31/x
  3. Step 3: Cross multiply
    28,233.56x = 38,963.23 × 15,658.31
  4. Step 4: Simplify right side
    28,233.56x = 610,098,392.20
  5. Step 5: Solve for x
    x = 610,098,392.20/28,233.56
  6. Step 6: Final answer
    x = 21,608.98

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1.5x scale

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.