Home / 21,627.57-32,434.66-9,147.39

Finding the Fourth Proportional to 21,627.57, 32,434.66 and 9,147.39

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Solution

The fourth proportional to 21,627.57, 32,434.66 and 9,147.39 is: 13,718.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,627.57 : 32,434.66 = 9,147.39 : x
  2. Step 2: Convert to fraction form
    21,627.57/32,434.66 = 9,147.39/x
  3. Step 3: Cross multiply
    21,627.57x = 32,434.66 × 9,147.39
  4. Step 4: Simplify right side
    21,627.57x = 296,692,484.54
  5. Step 5: Solve for x
    x = 296,692,484.54/21,627.57
  6. Step 6: Final answer
    x = 13,718.25

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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.