Home / 26,822.52-40,207.68-12,778.80

Finding the Fourth Proportional to 26,822.52, 40,207.68 and 12,778.80

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Solution

The fourth proportional to 26,822.52, 40,207.68 and 12,778.80 is: 19,155.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,822.52 : 40,207.68 = 12,778.80 : x
  2. Step 2: Convert to fraction form
    26,822.52/40,207.68 = 12,778.80/x
  3. Step 3: Cross multiply
    26,822.52x = 40,207.68 × 12,778.80
  4. Step 4: Simplify right side
    26,822.52x = 513,805,901.18
  5. Step 5: Solve for x
    x = 513,805,901.18/26,822.52
  6. Step 6: Final answer
    x = 19,155.77

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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.