Home / 31,681.52-43,713.50-18,932.79

Finding the Fourth Proportional to 31,681.52, 43,713.50 and 18,932.79

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Solution

The fourth proportional to 31,681.52, 43,713.50 and 18,932.79 is: 26,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.52 : 43,713.50 = 18,932.79 : x
  2. Step 2: Convert to fraction form
    31,681.52/43,713.50 = 18,932.79/x
  3. Step 3: Cross multiply
    31,681.52x = 43,713.50 × 18,932.79
  4. Step 4: Simplify right side
    31,681.52x = 827,618,515.67
  5. Step 5: Solve for x
    x = 827,618,515.67/31,681.52
  6. Step 6: Final answer
    x = 26,123.07

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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.