Home / 25,789.28-38,684.80-8,256.82

Finding the Fourth Proportional to 25,789.28, 38,684.80 and 8,256.82

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Solution

The fourth proportional to 25,789.28, 38,684.80 and 8,256.82 is: 12,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789.28 : 38,684.80 = 8,256.82 : x
  2. Step 2: Convert to fraction form
    25,789.28/38,684.80 = 8,256.82/x
  3. Step 3: Cross multiply
    25,789.28x = 38,684.80 × 8,256.82
  4. Step 4: Simplify right side
    25,789.28x = 319,413,430.34
  5. Step 5: Solve for x
    x = 319,413,430.34/25,789.28
  6. Step 6: Final answer
    x = 12,385.51

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1.5x scale

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.