Home / 28,229.82-38,930.10-16,897.52

Finding the Fourth Proportional to 28,229.82, 38,930.10 and 16,897.52

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Solution

The fourth proportional to 28,229.82, 38,930.10 and 16,897.52 is: 23,302.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.82 : 38,930.10 = 16,897.52 : x
  2. Step 2: Convert to fraction form
    28,229.82/38,930.10 = 16,897.52/x
  3. Step 3: Cross multiply
    28,229.82x = 38,930.10 × 16,897.52
  4. Step 4: Simplify right side
    28,229.82x = 657,821,948.70
  5. Step 5: Solve for x
    x = 657,821,948.70/28,229.82
  6. Step 6: Final answer
    x = 23,302.38

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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.