Home / 28,726.31-39,642.31-16,151.06

Finding the Fourth Proportional to 28,726.31, 39,642.31 and 16,151.06

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Solution

The fourth proportional to 28,726.31, 39,642.31 and 16,151.06 is: 22,288.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.31 : 39,642.31 = 16,151.06 : x
  2. Step 2: Convert to fraction form
    28,726.31/39,642.31 = 16,151.06/x
  3. Step 3: Cross multiply
    28,726.31x = 39,642.31 × 16,151.06
  4. Step 4: Simplify right side
    28,726.31x = 640,265,446.64
  5. Step 5: Solve for x
    x = 640,265,446.64/28,726.31
  6. Step 6: Final answer
    x = 22,288.47

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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.