Home / 28,126.97-38,816.57-15,552.53

Finding the Fourth Proportional to 28,126.97, 38,816.57 and 15,552.53

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Solution

The fourth proportional to 28,126.97, 38,816.57 and 15,552.53 is: 21,463.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.97 : 38,816.57 = 15,552.53 : x
  2. Step 2: Convert to fraction form
    28,126.97/38,816.57 = 15,552.53/x
  3. Step 3: Cross multiply
    28,126.97x = 38,816.57 × 15,552.53
  4. Step 4: Simplify right side
    28,126.97x = 603,695,791.66
  5. Step 5: Solve for x
    x = 603,695,791.66/28,126.97
  6. Step 6: Final answer
    x = 21,463.24

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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.