Home / 31,299.12-43,182-17,860.68

Finding the Fourth Proportional to 31,299.12, 43,182 and 17,860.68

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Solution

The fourth proportional to 31,299.12, 43,182 and 17,860.68 is: 24,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,299.12 : 43,182 = 17,860.68 : x
  2. Step 2: Convert to fraction form
    31,299.12/43,182 = 17,860.68/x
  3. Step 3: Cross multiply
    31,299.12x = 43,182 × 17,860.68
  4. Step 4: Simplify right side
    31,299.12x = 771,259,883.76
  5. Step 5: Solve for x
    x = 771,259,883.76/31,299.12
  6. Step 6: Final answer
    x = 24,641.58

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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.