Home / 21,404.71-29,531.23-12,444.84

Finding the Fourth Proportional to 21,404.71, 29,531.23 and 12,444.84

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Solution

The fourth proportional to 21,404.71, 29,531.23 and 12,444.84 is: 17,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.71 : 29,531.23 = 12,444.84 : x
  2. Step 2: Convert to fraction form
    21,404.71/29,531.23 = 12,444.84/x
  3. Step 3: Cross multiply
    21,404.71x = 29,531.23 × 12,444.84
  4. Step 4: Simplify right side
    21,404.71x = 367,511,471.24
  5. Step 5: Solve for x
    x = 367,511,471.24/21,404.71
  6. Step 6: Final answer
    x = 17,169.66

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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.