Home / 18,678.12-27,854.34-17,642.94

Finding the Fourth Proportional to 18,678.12, 27,854.34 and 17,642.94

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Solution

The fourth proportional to 18,678.12, 27,854.34 and 17,642.94 is: 26,310.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.12 : 27,854.34 = 17,642.94 : x
  2. Step 2: Convert to fraction form
    18,678.12/27,854.34 = 17,642.94/x
  3. Step 3: Cross multiply
    18,678.12x = 27,854.34 × 17,642.94
  4. Step 4: Simplify right side
    18,678.12x = 491,432,449.36
  5. Step 5: Solve for x
    x = 491,432,449.36/18,678.12
  6. Step 6: Final answer
    x = 26,310.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.