Home / 22,604.88-31,178.12-15,531.60

Finding the Fourth Proportional to 22,604.88, 31,178.12 and 15,531.60

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Solution

The fourth proportional to 22,604.88, 31,178.12 and 15,531.60 is: 21,422.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,604.88 : 31,178.12 = 15,531.60 : x
  2. Step 2: Convert to fraction form
    22,604.88/31,178.12 = 15,531.60/x
  3. Step 3: Cross multiply
    22,604.88x = 31,178.12 × 15,531.60
  4. Step 4: Simplify right side
    22,604.88x = 484,246,088.59
  5. Step 5: Solve for x
    x = 484,246,088.59/22,604.88
  6. Step 6: Final answer
    x = 21,422.19

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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.