Home / 31,780.76-43,856.70-17,633.24

Finding the Fourth Proportional to 31,780.76, 43,856.70 and 17,633.24

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Solution

The fourth proportional to 31,780.76, 43,856.70 and 17,633.24 is: 24,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,780.76 : 43,856.70 = 17,633.24 : x
  2. Step 2: Convert to fraction form
    31,780.76/43,856.70 = 17,633.24/x
  3. Step 3: Cross multiply
    31,780.76x = 43,856.70 × 17,633.24
  4. Step 4: Simplify right side
    31,780.76x = 773,335,716.71
  5. Step 5: Solve for x
    x = 773,335,716.71/31,780.76
  6. Step 6: Final answer
    x = 24,333.46

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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.