Home / 20,546.40-28,354.02-11,595.80

Finding the Fourth Proportional to 20,546.40, 28,354.02 and 11,595.80

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Solution

The fourth proportional to 20,546.40, 28,354.02 and 11,595.80 is: 16,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,546.40 : 28,354.02 = 11,595.80 : x
  2. Step 2: Convert to fraction form
    20,546.40/28,354.02 = 11,595.80/x
  3. Step 3: Cross multiply
    20,546.40x = 28,354.02 × 11,595.80
  4. Step 4: Simplify right side
    20,546.40x = 328,787,545.12
  5. Step 5: Solve for x
    x = 328,787,545.12/20,546.40
  6. Step 6: Final answer
    x = 16,002.20

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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.