Home / 21,877.20-32,820.60-7,083.60

Finding the Fourth Proportional to 21,877.20, 32,820.60 and 7,083.60

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Solution

The fourth proportional to 21,877.20, 32,820.60 and 7,083.60 is: 10,626.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,877.20 : 32,820.60 = 7,083.60 : x
  2. Step 2: Convert to fraction form
    21,877.20/32,820.60 = 7,083.60/x
  3. Step 3: Cross multiply
    21,877.20x = 32,820.60 × 7,083.60
  4. Step 4: Simplify right side
    21,877.20x = 232,488,002.16
  5. Step 5: Solve for x
    x = 232,488,002.16/21,877.20
  6. Step 6: Final answer
    x = 10,626.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.