Home / 27,178.40-40,777.20-26,218.40

Finding the Fourth Proportional to 27,178.40, 40,777.20 and 26,218.40

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Solution

The fourth proportional to 27,178.40, 40,777.20 and 26,218.40 is: 39,336.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,178.40 : 40,777.20 = 26,218.40 : x
  2. Step 2: Convert to fraction form
    27,178.40/40,777.20 = 26,218.40/x
  3. Step 3: Cross multiply
    27,178.40x = 40,777.20 × 26,218.40
  4. Step 4: Simplify right side
    27,178.40x = 1,069,112,940.48
  5. Step 5: Solve for x
    x = 1,069,112,940.48/27,178.40
  6. Step 6: Final answer
    x = 39,336.86

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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.