Home / 21,337.16-29,447.94-12,382.74

Finding the Fourth Proportional to 21,337.16, 29,447.94 and 12,382.74

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Solution

The fourth proportional to 21,337.16, 29,447.94 and 12,382.74 is: 17,089.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.16 : 29,447.94 = 12,382.74 : x
  2. Step 2: Convert to fraction form
    21,337.16/29,447.94 = 12,382.74/x
  3. Step 3: Cross multiply
    21,337.16x = 29,447.94 × 12,382.74
  4. Step 4: Simplify right side
    21,337.16x = 364,646,184.56
  5. Step 5: Solve for x
    x = 364,646,184.56/21,337.16
  6. Step 6: Final answer
    x = 17,089.72

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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.