Home / 21,616.71-29,842.34-15,344.07

Finding the Fourth Proportional to 21,616.71, 29,842.34 and 15,344.07

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Solution

The fourth proportional to 21,616.71, 29,842.34 and 15,344.07 is: 21,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.71 : 29,842.34 = 15,344.07 : x
  2. Step 2: Convert to fraction form
    21,616.71/29,842.34 = 15,344.07/x
  3. Step 3: Cross multiply
    21,616.71x = 29,842.34 × 15,344.07
  4. Step 4: Simplify right side
    21,616.71x = 457,902,877.20
  5. Step 5: Solve for x
    x = 457,902,877.20/21,616.71
  6. Step 6: Final answer
    x = 21,182.82

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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.