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Finding the Fourth Proportional to 25,995.78, 39,000.12 and 7,527.78

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Solution

The fourth proportional to 25,995.78, 39,000.12 and 7,527.78 is: 11,293.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,995.78 : 39,000.12 = 7,527.78 : x
  2. Step 2: Convert to fraction form
    25,995.78/39,000.12 = 7,527.78/x
  3. Step 3: Cross multiply
    25,995.78x = 39,000.12 × 7,527.78
  4. Step 4: Simplify right side
    25,995.78x = 293,584,323.33
  5. Step 5: Solve for x
    x = 293,584,323.33/25,995.78
  6. Step 6: Final answer
    x = 11,293.54

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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.