Home / 25,040-34,555.20-13,862.72

Finding the Fourth Proportional to 25,040, 34,555.20 and 13,862.72

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Solution

The fourth proportional to 25,040, 34,555.20 and 13,862.72 is: 19,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,040 : 34,555.20 = 13,862.72 : x
  2. Step 2: Convert to fraction form
    25,040/34,555.20 = 13,862.72/x
  3. Step 3: Cross multiply
    25,040x = 34,555.20 × 13,862.72
  4. Step 4: Simplify right side
    25,040x = 479,029,062.14
  5. Step 5: Solve for x
    x = 479,029,062.14/25,040
  6. Step 6: Final answer
    x = 19,130.55

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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.