Home / 21,227.18-31,840.23-10,141.70

Finding the Fourth Proportional to 21,227.18, 31,840.23 and 10,141.70

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Solution

The fourth proportional to 21,227.18, 31,840.23 and 10,141.70 is: 15,212.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,227.18 : 31,840.23 = 10,141.70 : x
  2. Step 2: Convert to fraction form
    21,227.18/31,840.23 = 10,141.70/x
  3. Step 3: Cross multiply
    21,227.18x = 31,840.23 × 10,141.70
  4. Step 4: Simplify right side
    21,227.18x = 322,914,060.59
  5. Step 5: Solve for x
    x = 322,914,060.59/21,227.18
  6. Step 6: Final answer
    x = 15,212.29

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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.