Home / 25,580.76-38,360.16-8,935.80

Finding the Fourth Proportional to 25,580.76, 38,360.16 and 8,935.80

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Solution

The fourth proportional to 25,580.76, 38,360.16 and 8,935.80 is: 13,399.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,580.76 : 38,360.16 = 8,935.80 : x
  2. Step 2: Convert to fraction form
    25,580.76/38,360.16 = 8,935.80/x
  3. Step 3: Cross multiply
    25,580.76x = 38,360.16 × 8,935.80
  4. Step 4: Simplify right side
    25,580.76x = 342,778,717.73
  5. Step 5: Solve for x
    x = 342,778,717.73/25,580.76
  6. Step 6: Final answer
    x = 13,399.86

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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.