Home / 31,789.52-43,869.88-17,643.68

Finding the Fourth Proportional to 31,789.52, 43,869.88 and 17,643.68

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Solution

The fourth proportional to 31,789.52, 43,869.88 and 17,643.68 is: 24,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,789.52 : 43,869.88 = 17,643.68 : x
  2. Step 2: Convert to fraction form
    31,789.52/43,869.88 = 17,643.68/x
  3. Step 3: Cross multiply
    31,789.52x = 43,869.88 × 17,643.68
  4. Step 4: Simplify right side
    31,789.52x = 774,026,124.36
  5. Step 5: Solve for x
    x = 774,026,124.36/31,789.52
  6. Step 6: Final answer
    x = 24,348.47

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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.