Home / 31,347.23-43,262.28-17,920.42

Finding the Fourth Proportional to 31,347.23, 43,262.28 and 17,920.42

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Solution

The fourth proportional to 31,347.23, 43,262.28 and 17,920.42 is: 24,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.23 : 43,262.28 = 17,920.42 : x
  2. Step 2: Convert to fraction form
    31,347.23/43,262.28 = 17,920.42/x
  3. Step 3: Cross multiply
    31,347.23x = 43,262.28 × 17,920.42
  4. Step 4: Simplify right side
    31,347.23x = 775,278,182.96
  5. Step 5: Solve for x
    x = 775,278,182.96/31,347.23
  6. Step 6: Final answer
    x = 24,731.95

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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.