Home / 39,765.31-54,876.24-22,769.81

Finding the Fourth Proportional to 39,765.31, 54,876.24 and 22,769.81

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Solution

The fourth proportional to 39,765.31, 54,876.24 and 22,769.81 is: 31,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.31 : 54,876.24 = 22,769.81 : x
  2. Step 2: Convert to fraction form
    39,765.31/54,876.24 = 22,769.81/x
  3. Step 3: Cross multiply
    39,765.31x = 54,876.24 × 22,769.81
  4. Step 4: Simplify right side
    39,765.31x = 1,249,521,489.72
  5. Step 5: Solve for x
    x = 1,249,521,489.72/39,765.31
  6. Step 6: Final answer
    x = 31,422.40

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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.