Home / 27,118.89-40,719.65-25,782.39

Finding the Fourth Proportional to 27,118.89, 40,719.65 and 25,782.39

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Solution

The fourth proportional to 27,118.89, 40,719.65 and 25,782.39 is: 38,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,118.89 : 40,719.65 = 25,782.39 : x
  2. Step 2: Convert to fraction form
    27,118.89/40,719.65 = 25,782.39/x
  3. Step 3: Cross multiply
    27,118.89x = 40,719.65 × 25,782.39
  4. Step 4: Simplify right side
    27,118.89x = 1,049,849,896.96
  5. Step 5: Solve for x
    x = 1,049,849,896.96/27,118.89
  6. Step 6: Final answer
    x = 38,712.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.