Home / 21,325.59-29,419.76-12,367.88

Finding the Fourth Proportional to 21,325.59, 29,419.76 and 12,367.88

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Solution

The fourth proportional to 21,325.59, 29,419.76 and 12,367.88 is: 17,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.59 : 29,419.76 = 12,367.88 : x
  2. Step 2: Convert to fraction form
    21,325.59/29,419.76 = 12,367.88/x
  3. Step 3: Cross multiply
    21,325.59x = 29,419.76 × 12,367.88
  4. Step 4: Simplify right side
    21,325.59x = 363,860,208.95
  5. Step 5: Solve for x
    x = 363,860,208.95/21,325.59
  6. Step 6: Final answer
    x = 17,062.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.