Home / 21,454.75-32,182.17-9,142.75

Finding the Fourth Proportional to 21,454.75, 32,182.17 and 9,142.75

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Solution

The fourth proportional to 21,454.75, 32,182.17 and 9,142.75 is: 13,714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.75 : 32,182.17 = 9,142.75 : x
  2. Step 2: Convert to fraction form
    21,454.75/32,182.17 = 9,142.75/x
  3. Step 3: Cross multiply
    21,454.75x = 32,182.17 × 9,142.75
  4. Step 4: Simplify right side
    21,454.75x = 294,233,534.77
  5. Step 5: Solve for x
    x = 294,233,534.77/21,454.75
  6. Step 6: Final answer
    x = 13,714.14

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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.