Home / 25,669.90-38,504.31-11,818.90

Finding the Fourth Proportional to 25,669.90, 38,504.31 and 11,818.90

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Solution

The fourth proportional to 25,669.90, 38,504.31 and 11,818.90 is: 17,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,669.90 : 38,504.31 = 11,818.90 : x
  2. Step 2: Convert to fraction form
    25,669.90/38,504.31 = 11,818.90/x
  3. Step 3: Cross multiply
    25,669.90x = 38,504.31 × 11,818.90
  4. Step 4: Simplify right side
    25,669.90x = 455,078,589.46
  5. Step 5: Solve for x
    x = 455,078,589.46/25,669.90
  6. Step 6: Final answer
    x = 17,728.10

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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.