Home / 21,327.14-31,990.70-10,932.26

Finding the Fourth Proportional to 21,327.14, 31,990.70 and 10,932.26

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Solution

The fourth proportional to 21,327.14, 31,990.70 and 10,932.26 is: 16,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.14 : 31,990.70 = 10,932.26 : x
  2. Step 2: Convert to fraction form
    21,327.14/31,990.70 = 10,932.26/x
  3. Step 3: Cross multiply
    21,327.14x = 31,990.70 × 10,932.26
  4. Step 4: Simplify right side
    21,327.14x = 349,730,649.98
  5. Step 5: Solve for x
    x = 349,730,649.98/21,327.14
  6. Step 6: Final answer
    x = 16,398.38

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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.