Home / 31,291.75-43,186.23-17,864.92

Finding the Fourth Proportional to 31,291.75, 43,186.23 and 17,864.92

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Solution

The fourth proportional to 31,291.75, 43,186.23 and 17,864.92 is: 24,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,291.75 : 43,186.23 = 17,864.92 : x
  2. Step 2: Convert to fraction form
    31,291.75/43,186.23 = 17,864.92/x
  3. Step 3: Cross multiply
    31,291.75x = 43,186.23 × 17,864.92
  4. Step 4: Simplify right side
    31,291.75x = 771,518,544.05
  5. Step 5: Solve for x
    x = 771,518,544.05/31,291.75
  6. Step 6: Final answer
    x = 24,655.65

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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.