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Finding the Fourth Proportional to 21,602.91, 32,379.66 and 9,104.22

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Solution

The fourth proportional to 21,602.91, 32,379.66 and 9,104.22 is: 13,645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.91 : 32,379.66 = 9,104.22 : x
  2. Step 2: Convert to fraction form
    21,602.91/32,379.66 = 9,104.22/x
  3. Step 3: Cross multiply
    21,602.91x = 32,379.66 × 9,104.22
  4. Step 4: Simplify right side
    21,602.91x = 294,791,548.17
  5. Step 5: Solve for x
    x = 294,791,548.17/21,602.91
  6. Step 6: Final answer
    x = 13,645.92

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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.