Home / 28,656.17-39,543.74-15,908.61

Finding the Fourth Proportional to 28,656.17, 39,543.74 and 15,908.61

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Solution

The fourth proportional to 28,656.17, 39,543.74 and 15,908.61 is: 21,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.17 : 39,543.74 = 15,908.61 : x
  2. Step 2: Convert to fraction form
    28,656.17/39,543.74 = 15,908.61/x
  3. Step 3: Cross multiply
    28,656.17x = 39,543.74 × 15,908.61
  4. Step 4: Simplify right side
    28,656.17x = 629,085,937.60
  5. Step 5: Solve for x
    x = 629,085,937.60/28,656.17
  6. Step 6: Final answer
    x = 21,952.90

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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.