Home / 31,618.62-43,633.80-17,278.45

Finding the Fourth Proportional to 31,618.62, 43,633.80 and 17,278.45

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Solution

The fourth proportional to 31,618.62, 43,633.80 and 17,278.45 is: 23,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,618.62 : 43,633.80 = 17,278.45 : x
  2. Step 2: Convert to fraction form
    31,618.62/43,633.80 = 17,278.45/x
  3. Step 3: Cross multiply
    31,618.62x = 43,633.80 × 17,278.45
  4. Step 4: Simplify right side
    31,618.62x = 753,924,431.61
  5. Step 5: Solve for x
    x = 753,924,431.61/31,618.62
  6. Step 6: Final answer
    x = 23,844.32

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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.