Home / 28,083.76-38,753.60-16,147.04

Finding the Fourth Proportional to 28,083.76, 38,753.60 and 16,147.04

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Solution

The fourth proportional to 28,083.76, 38,753.60 and 16,147.04 is: 22,281.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.76 : 38,753.60 = 16,147.04 : x
  2. Step 2: Convert to fraction form
    28,083.76/38,753.60 = 16,147.04/x
  3. Step 3: Cross multiply
    28,083.76x = 38,753.60 × 16,147.04
  4. Step 4: Simplify right side
    28,083.76x = 625,755,929.34
  5. Step 5: Solve for x
    x = 625,755,929.34/28,083.76
  6. Step 6: Final answer
    x = 22,281.77

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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.