Home / 25,343.51-34,960.82-15,781.86

Finding the Fourth Proportional to 25,343.51, 34,960.82 and 15,781.86

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Solution

The fourth proportional to 25,343.51, 34,960.82 and 15,781.86 is: 21,770.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,343.51 : 34,960.82 = 15,781.86 : x
  2. Step 2: Convert to fraction form
    25,343.51/34,960.82 = 15,781.86/x
  3. Step 3: Cross multiply
    25,343.51x = 34,960.82 × 15,781.86
  4. Step 4: Simplify right side
    25,343.51x = 551,746,687.82
  5. Step 5: Solve for x
    x = 551,746,687.82/25,343.51
  6. Step 6: Final answer
    x = 21,770.73

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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.