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Finding the Fourth Proportional to 30,422.88, 45,523.31 and 17,948.88

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Solution

The fourth proportional to 30,422.88, 45,523.31 and 17,948.88 is: 26,857.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422.88 : 45,523.31 = 17,948.88 : x
  2. Step 2: Convert to fraction form
    30,422.88/45,523.31 = 17,948.88/x
  3. Step 3: Cross multiply
    30,422.88x = 45,523.31 × 17,948.88
  4. Step 4: Simplify right side
    30,422.88x = 817,092,338.65
  5. Step 5: Solve for x
    x = 817,092,338.65/30,422.88
  6. Step 6: Final answer
    x = 26,857.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.