Home / 26,019.78-39,031.05-8,251.84

Finding the Fourth Proportional to 26,019.78, 39,031.05 and 8,251.84

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Solution

The fourth proportional to 26,019.78, 39,031.05 and 8,251.84 is: 12,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,019.78 : 39,031.05 = 8,251.84 : x
  2. Step 2: Convert to fraction form
    26,019.78/39,031.05 = 8,251.84/x
  3. Step 3: Cross multiply
    26,019.78x = 39,031.05 × 8,251.84
  4. Step 4: Simplify right side
    26,019.78x = 322,077,781.79
  5. Step 5: Solve for x
    x = 322,077,781.79/26,019.78
  6. Step 6: Final answer
    x = 12,378.19

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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.