Home / 25,710.12-38,570.76-8,181.36

Finding the Fourth Proportional to 25,710.12, 38,570.76 and 8,181.36

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Solution

The fourth proportional to 25,710.12, 38,570.76 and 8,181.36 is: 12,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,710.12 : 38,570.76 = 8,181.36 : x
  2. Step 2: Convert to fraction form
    25,710.12/38,570.76 = 8,181.36/x
  3. Step 3: Cross multiply
    25,710.12x = 38,570.76 × 8,181.36
  4. Step 4: Simplify right side
    25,710.12x = 315,561,273.03
  5. Step 5: Solve for x
    x = 315,561,273.03/25,710.12
  6. Step 6: Final answer
    x = 12,273.82

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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.