Home / 22,752.88-31,400.80-12,684.58

Finding the Fourth Proportional to 22,752.88, 31,400.80 and 12,684.58

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Solution

The fourth proportional to 22,752.88, 31,400.80 and 12,684.58 is: 17,505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,752.88 : 31,400.80 = 12,684.58 : x
  2. Step 2: Convert to fraction form
    22,752.88/31,400.80 = 12,684.58/x
  3. Step 3: Cross multiply
    22,752.88x = 31,400.80 × 12,684.58
  4. Step 4: Simplify right side
    22,752.88x = 398,305,959.66
  5. Step 5: Solve for x
    x = 398,305,959.66/22,752.88
  6. Step 6: Final answer
    x = 17,505.74

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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.