Home / 30,974.16-42,744.48-18,227.82

Finding the Fourth Proportional to 30,974.16, 42,744.48 and 18,227.82

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Solution

The fourth proportional to 30,974.16, 42,744.48 and 18,227.82 is: 25,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.16 : 42,744.48 = 18,227.82 : x
  2. Step 2: Convert to fraction form
    30,974.16/42,744.48 = 18,227.82/x
  3. Step 3: Cross multiply
    30,974.16x = 42,744.48 × 18,227.82
  4. Step 4: Simplify right side
    30,974.16x = 779,138,687.43
  5. Step 5: Solve for x
    x = 779,138,687.43/30,974.16
  6. Step 6: Final answer
    x = 25,154.47

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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.