Home / 26,789.20-40,178.67-9,255.40

Finding the Fourth Proportional to 26,789.20, 40,178.67 and 9,255.40

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Solution

The fourth proportional to 26,789.20, 40,178.67 and 9,255.40 is: 13,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,789.20 : 40,178.67 = 9,255.40 : x
  2. Step 2: Convert to fraction form
    26,789.20/40,178.67 = 9,255.40/x
  3. Step 3: Cross multiply
    26,789.20x = 40,178.67 × 9,255.40
  4. Step 4: Simplify right side
    26,789.20x = 371,869,662.32
  5. Step 5: Solve for x
    x = 371,869,662.32/26,789.20
  6. Step 6: Final answer
    x = 13,881.33

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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.