Home / 26,077.12-35,963.20-20,478.40

Finding the Fourth Proportional to 26,077.12, 35,963.20 and 20,478.40

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Solution

The fourth proportional to 26,077.12, 35,963.20 and 20,478.40 is: 28,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,077.12 : 35,963.20 = 20,478.40 : x
  2. Step 2: Convert to fraction form
    26,077.12/35,963.20 = 20,478.40/x
  3. Step 3: Cross multiply
    26,077.12x = 35,963.20 × 20,478.40
  4. Step 4: Simplify right side
    26,077.12x = 736,468,794.88
  5. Step 5: Solve for x
    x = 736,468,794.88/26,077.12
  6. Step 6: Final answer
    x = 28,241.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.