Home / 31,218.88-43,081.64-17,790.92

Finding the Fourth Proportional to 31,218.88, 43,081.64 and 17,790.92

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Solution

The fourth proportional to 31,218.88, 43,081.64 and 17,790.92 is: 24,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218.88 : 43,081.64 = 17,790.92 : x
  2. Step 2: Convert to fraction form
    31,218.88/43,081.64 = 17,790.92/x
  3. Step 3: Cross multiply
    31,218.88x = 43,081.64 × 17,790.92
  4. Step 4: Simplify right side
    31,218.88x = 766,462,010.71
  5. Step 5: Solve for x
    x = 766,462,010.71/31,218.88
  6. Step 6: Final answer
    x = 24,551.23

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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.