Home / 21,657.12-32,425.76-11,104.40

Finding the Fourth Proportional to 21,657.12, 32,425.76 and 11,104.40

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Solution

The fourth proportional to 21,657.12, 32,425.76 and 11,104.40 is: 16,625.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.12 : 32,425.76 = 11,104.40 : x
  2. Step 2: Convert to fraction form
    21,657.12/32,425.76 = 11,104.40/x
  3. Step 3: Cross multiply
    21,657.12x = 32,425.76 × 11,104.40
  4. Step 4: Simplify right side
    21,657.12x = 360,068,609.34
  5. Step 5: Solve for x
    x = 360,068,609.34/21,657.12
  6. Step 6: Final answer
    x = 16,625.88

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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.