Home / 28,042.68-38,699.88-16,108.20

Finding the Fourth Proportional to 28,042.68, 38,699.88 and 16,108.20

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Solution

The fourth proportional to 28,042.68, 38,699.88 and 16,108.20 is: 22,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.68 : 38,699.88 = 16,108.20 : x
  2. Step 2: Convert to fraction form
    28,042.68/38,699.88 = 16,108.20/x
  3. Step 3: Cross multiply
    28,042.68x = 38,699.88 × 16,108.20
  4. Step 4: Simplify right side
    28,042.68x = 623,385,407.02
  5. Step 5: Solve for x
    x = 623,385,407.02/28,042.68
  6. Step 6: Final answer
    x = 22,229.88

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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.