Home / 21,587.38-32,385.49-8,259.44

Finding the Fourth Proportional to 21,587.38, 32,385.49 and 8,259.44

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Solution

The fourth proportional to 21,587.38, 32,385.49 and 8,259.44 is: 12,390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.38 : 32,385.49 = 8,259.44 : x
  2. Step 2: Convert to fraction form
    21,587.38/32,385.49 = 8,259.44/x
  3. Step 3: Cross multiply
    21,587.38x = 32,385.49 × 8,259.44
  4. Step 4: Simplify right side
    21,587.38x = 267,485,828.95
  5. Step 5: Solve for x
    x = 267,485,828.95/21,587.38
  6. Step 6: Final answer
    x = 12,390.84

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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.