Home / 28,726.62-39,642.74-16,151.38

Finding the Fourth Proportional to 28,726.62, 39,642.74 and 16,151.38

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Solution

The fourth proportional to 28,726.62, 39,642.74 and 16,151.38 is: 22,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.62 : 39,642.74 = 16,151.38 : x
  2. Step 2: Convert to fraction form
    28,726.62/39,642.74 = 16,151.38/x
  3. Step 3: Cross multiply
    28,726.62x = 39,642.74 × 16,151.38
  4. Step 4: Simplify right side
    28,726.62x = 640,284,957.98
  5. Step 5: Solve for x
    x = 640,284,957.98/28,726.62
  6. Step 6: Final answer
    x = 22,288.91

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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.