Home / 26,871.20-40,321.20-11,290.40

Finding the Fourth Proportional to 26,871.20, 40,321.20 and 11,290.40

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Solution

The fourth proportional to 26,871.20, 40,321.20 and 11,290.40 is: 16,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,871.20 : 40,321.20 = 11,290.40 : x
  2. Step 2: Convert to fraction form
    26,871.20/40,321.20 = 11,290.40/x
  3. Step 3: Cross multiply
    26,871.20x = 40,321.20 × 11,290.40
  4. Step 4: Simplify right side
    26,871.20x = 455,242,476.48
  5. Step 5: Solve for x
    x = 455,242,476.48/26,871.20
  6. Step 6: Final answer
    x = 16,941.65

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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.