Home / 21,291.44-29,382.18-12,344.13

Finding the Fourth Proportional to 21,291.44, 29,382.18 and 12,344.13

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Solution

The fourth proportional to 21,291.44, 29,382.18 and 12,344.13 is: 17,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291.44 : 29,382.18 = 12,344.13 : x
  2. Step 2: Convert to fraction form
    21,291.44/29,382.18 = 12,344.13/x
  3. Step 3: Cross multiply
    21,291.44x = 29,382.18 × 12,344.13
  4. Step 4: Simplify right side
    21,291.44x = 362,697,472.75
  5. Step 5: Solve for x
    x = 362,697,472.75/21,291.44
  6. Step 6: Final answer
    x = 17,034.90

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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.