Home / 31,765.86-43,842.60-18,335.25

Finding the Fourth Proportional to 31,765.86, 43,842.60 and 18,335.25

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Solution

The fourth proportional to 31,765.86, 43,842.60 and 18,335.25 is: 25,305.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.86 : 43,842.60 = 18,335.25 : x
  2. Step 2: Convert to fraction form
    31,765.86/43,842.60 = 18,335.25/x
  3. Step 3: Cross multiply
    31,765.86x = 43,842.60 × 18,335.25
  4. Step 4: Simplify right side
    31,765.86x = 803,865,031.65
  5. Step 5: Solve for x
    x = 803,865,031.65/31,765.86
  6. Step 6: Final answer
    x = 25,305.94

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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.