Home / 31,761.77-43,824.23-18,330.17

Finding the Fourth Proportional to 31,761.77, 43,824.23 and 18,330.17

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Solution

The fourth proportional to 31,761.77, 43,824.23 and 18,330.17 is: 25,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,761.77 : 43,824.23 = 18,330.17 : x
  2. Step 2: Convert to fraction form
    31,761.77/43,824.23 = 18,330.17/x
  3. Step 3: Cross multiply
    31,761.77x = 43,824.23 × 18,330.17
  4. Step 4: Simplify right side
    31,761.77x = 803,305,275.25
  5. Step 5: Solve for x
    x = 803,305,275.25/31,761.77
  6. Step 6: Final answer
    x = 25,291.58

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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.