Home / 21,327.54-31,961.24-10,070.87

Finding the Fourth Proportional to 21,327.54, 31,961.24 and 10,070.87

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Solution

The fourth proportional to 21,327.54, 31,961.24 and 10,070.87 is: 15,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.54 : 31,961.24 = 10,070.87 : x
  2. Step 2: Convert to fraction form
    21,327.54/31,961.24 = 10,070.87/x
  3. Step 3: Cross multiply
    21,327.54x = 31,961.24 × 10,070.87
  4. Step 4: Simplify right side
    21,327.54x = 321,877,440.54
  5. Step 5: Solve for x
    x = 321,877,440.54/21,327.54
  6. Step 6: Final answer
    x = 15,092.10

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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.