Home / 25,424.88-38,154.60-13,739.28

Finding the Fourth Proportional to 25,424.88, 38,154.60 and 13,739.28

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Solution

The fourth proportional to 25,424.88, 38,154.60 and 13,739.28 is: 20,618.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,424.88 : 38,154.60 = 13,739.28 : x
  2. Step 2: Convert to fraction form
    25,424.88/38,154.60 = 13,739.28/x
  3. Step 3: Cross multiply
    25,424.88x = 38,154.60 × 13,739.28
  4. Step 4: Simplify right side
    25,424.88x = 524,216,732.69
  5. Step 5: Solve for x
    x = 524,216,732.69/25,424.88
  6. Step 6: Final answer
    x = 20,618.26

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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.