Home / 31,305.03-43,204.50-17,878.20

Finding the Fourth Proportional to 31,305.03, 43,204.50 and 17,878.20

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Solution

The fourth proportional to 31,305.03, 43,204.50 and 17,878.20 is: 24,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.03 : 43,204.50 = 17,878.20 : x
  2. Step 2: Convert to fraction form
    31,305.03/43,204.50 = 17,878.20/x
  3. Step 3: Cross multiply
    31,305.03x = 43,204.50 × 17,878.20
  4. Step 4: Simplify right side
    31,305.03x = 772,418,691.90
  5. Step 5: Solve for x
    x = 772,418,691.90/31,305.03
  6. Step 6: Final answer
    x = 24,673.95

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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.