Home / 21,780.88-32,649.26-14,761.61

Finding the Fourth Proportional to 21,780.88, 32,649.26 and 14,761.61

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Solution

The fourth proportional to 21,780.88, 32,649.26 and 14,761.61 is: 22,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780.88 : 32,649.26 = 14,761.61 : x
  2. Step 2: Convert to fraction form
    21,780.88/32,649.26 = 14,761.61/x
  3. Step 3: Cross multiply
    21,780.88x = 32,649.26 × 14,761.61
  4. Step 4: Simplify right side
    21,780.88x = 481,955,642.91
  5. Step 5: Solve for x
    x = 481,955,642.91/21,780.88
  6. Step 6: Final answer
    x = 22,127.46

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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.