Home / 31,443.71-43,398.48-18,023.95

Finding the Fourth Proportional to 31,443.71, 43,398.48 and 18,023.95

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Solution

The fourth proportional to 31,443.71, 43,398.48 and 18,023.95 is: 24,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,443.71 : 43,398.48 = 18,023.95 : x
  2. Step 2: Convert to fraction form
    31,443.71/43,398.48 = 18,023.95/x
  3. Step 3: Cross multiply
    31,443.71x = 43,398.48 × 18,023.95
  4. Step 4: Simplify right side
    31,443.71x = 782,212,033.60
  5. Step 5: Solve for x
    x = 782,212,033.60/31,443.71
  6. Step 6: Final answer
    x = 24,876.58

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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.