Home / 25,772.96-38,656.60-12,585.36

Finding the Fourth Proportional to 25,772.96, 38,656.60 and 12,585.36

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Solution

The fourth proportional to 25,772.96, 38,656.60 and 12,585.36 is: 18,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,772.96 : 38,656.60 = 12,585.36 : x
  2. Step 2: Convert to fraction form
    25,772.96/38,656.60 = 12,585.36/x
  3. Step 3: Cross multiply
    25,772.96x = 38,656.60 × 12,585.36
  4. Step 4: Simplify right side
    25,772.96x = 486,507,227.38
  5. Step 5: Solve for x
    x = 486,507,227.38/25,772.96
  6. Step 6: Final answer
    x = 18,876.65

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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.