Home / 22,552.32-31,122.09-12,988.71

Finding the Fourth Proportional to 22,552.32, 31,122.09 and 12,988.71

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Solution

The fourth proportional to 22,552.32, 31,122.09 and 12,988.71 is: 17,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,552.32 : 31,122.09 = 12,988.71 : x
  2. Step 2: Convert to fraction form
    22,552.32/31,122.09 = 12,988.71/x
  3. Step 3: Cross multiply
    22,552.32x = 31,122.09 × 12,988.71
  4. Step 4: Simplify right side
    22,552.32x = 404,235,801.60
  5. Step 5: Solve for x
    x = 404,235,801.60/22,552.32
  6. Step 6: Final answer
    x = 17,924.36

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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.