Home / 31,712.19-43,775.22-18,294.95

Finding the Fourth Proportional to 31,712.19, 43,775.22 and 18,294.95

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Solution

The fourth proportional to 31,712.19, 43,775.22 and 18,294.95 is: 25,254.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712.19 : 43,775.22 = 18,294.95 : x
  2. Step 2: Convert to fraction form
    31,712.19/43,775.22 = 18,294.95/x
  3. Step 3: Cross multiply
    31,712.19x = 43,775.22 × 18,294.95
  4. Step 4: Simplify right side
    31,712.19x = 800,865,242.26
  5. Step 5: Solve for x
    x = 800,865,242.26/31,712.19
  6. Step 6: Final answer
    x = 25,254.18

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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.