Home / 21,480.16-32,221.44-6,691.18

Finding the Fourth Proportional to 21,480.16, 32,221.44 and 6,691.18

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Solution

The fourth proportional to 21,480.16, 32,221.44 and 6,691.18 is: 10,037.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.16 : 32,221.44 = 6,691.18 : x
  2. Step 2: Convert to fraction form
    21,480.16/32,221.44 = 6,691.18/x
  3. Step 3: Cross multiply
    21,480.16x = 32,221.44 × 6,691.18
  4. Step 4: Simplify right side
    21,480.16x = 215,599,454.90
  5. Step 5: Solve for x
    x = 215,599,454.90/21,480.16
  6. Step 6: Final answer
    x = 10,037.14

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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.