Home / 28,649.22-39,535.31-15,901.66

Finding the Fourth Proportional to 28,649.22, 39,535.31 and 15,901.66

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Solution

The fourth proportional to 28,649.22, 39,535.31 and 15,901.66 is: 21,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.22 : 39,535.31 = 15,901.66 : x
  2. Step 2: Convert to fraction form
    28,649.22/39,535.31 = 15,901.66/x
  3. Step 3: Cross multiply
    28,649.22x = 39,535.31 × 15,901.66
  4. Step 4: Simplify right side
    28,649.22x = 628,676,780.43
  5. Step 5: Solve for x
    x = 628,676,780.43/28,649.22
  6. Step 6: Final answer
    x = 21,943.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.