Home / 20,733.54-28,630.17-17,778.66

Finding the Fourth Proportional to 20,733.54, 28,630.17 and 17,778.66

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Solution

The fourth proportional to 20,733.54, 28,630.17 and 17,778.66 is: 24,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.54 : 28,630.17 = 17,778.66 : x
  2. Step 2: Convert to fraction form
    20,733.54/28,630.17 = 17,778.66/x
  3. Step 3: Cross multiply
    20,733.54x = 28,630.17 × 17,778.66
  4. Step 4: Simplify right side
    20,733.54x = 509,006,058.17
  5. Step 5: Solve for x
    x = 509,006,058.17/20,733.54
  6. Step 6: Final answer
    x = 24,549.89

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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.