Home / 25,769.93-38,654.40-8,239.76

Finding the Fourth Proportional to 25,769.93, 38,654.40 and 8,239.76

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Solution

The fourth proportional to 25,769.93, 38,654.40 and 8,239.76 is: 12,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,769.93 : 38,654.40 = 8,239.76 : x
  2. Step 2: Convert to fraction form
    25,769.93/38,654.40 = 8,239.76/x
  3. Step 3: Cross multiply
    25,769.93x = 38,654.40 × 8,239.76
  4. Step 4: Simplify right side
    25,769.93x = 318,502,978.94
  5. Step 5: Solve for x
    x = 318,502,978.94/25,769.93
  6. Step 6: Final answer
    x = 12,359.48

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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.