Home / 21,250.97-31,876.41-10,123.91

Finding the Fourth Proportional to 21,250.97, 31,876.41 and 10,123.91

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Solution

The fourth proportional to 21,250.97, 31,876.41 and 10,123.91 is: 15,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.97 : 31,876.41 = 10,123.91 : x
  2. Step 2: Convert to fraction form
    21,250.97/31,876.41 = 10,123.91/x
  3. Step 3: Cross multiply
    21,250.97x = 31,876.41 × 10,123.91
  4. Step 4: Simplify right side
    21,250.97x = 322,713,905.96
  5. Step 5: Solve for x
    x = 322,713,905.96/21,250.97
  6. Step 6: Final answer
    x = 15,185.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.