Home / 28,085.10-38,765.07-16,149.66

Finding the Fourth Proportional to 28,085.10, 38,765.07 and 16,149.66

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Solution

The fourth proportional to 28,085.10, 38,765.07 and 16,149.66 is: 22,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.10 : 38,765.07 = 16,149.66 : x
  2. Step 2: Convert to fraction form
    28,085.10/38,765.07 = 16,149.66/x
  3. Step 3: Cross multiply
    28,085.10x = 38,765.07 × 16,149.66
  4. Step 4: Simplify right side
    28,085.10x = 626,042,700.38
  5. Step 5: Solve for x
    x = 626,042,700.38/28,085.10
  6. Step 6: Final answer
    x = 22,290.92

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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.