Home / 28,726.56-39,642.18-16,151.28

Finding the Fourth Proportional to 28,726.56, 39,642.18 and 16,151.28

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Solution

The fourth proportional to 28,726.56, 39,642.18 and 16,151.28 is: 22,288.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.56 : 39,642.18 = 16,151.28 : x
  2. Step 2: Convert to fraction form
    28,726.56/39,642.18 = 16,151.28/x
  3. Step 3: Cross multiply
    28,726.56x = 39,642.18 × 16,151.28
  4. Step 4: Simplify right side
    28,726.56x = 640,271,948.99
  5. Step 5: Solve for x
    x = 640,271,948.99/28,726.56
  6. Step 6: Final answer
    x = 22,288.50

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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.