Home / 28,031.73-38,693.16-16,704.78

Finding the Fourth Proportional to 28,031.73, 38,693.16 and 16,704.78

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Solution

The fourth proportional to 28,031.73, 38,693.16 and 16,704.78 is: 23,058.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.73 : 38,693.16 = 16,704.78 : x
  2. Step 2: Convert to fraction form
    28,031.73/38,693.16 = 16,704.78/x
  3. Step 3: Cross multiply
    28,031.73x = 38,693.16 × 16,704.78
  4. Step 4: Simplify right side
    28,031.73x = 646,360,517.56
  5. Step 5: Solve for x
    x = 646,360,517.56/28,031.73
  6. Step 6: Final answer
    x = 23,058.18

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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.