Home / 40,209.64-55,438.28-28,738.24

Finding the Fourth Proportional to 40,209.64, 55,438.28 and 28,738.24

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Solution

The fourth proportional to 40,209.64, 55,438.28 and 28,738.24 is: 39,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,209.64 : 55,438.28 = 28,738.24 : x
  2. Step 2: Convert to fraction form
    40,209.64/55,438.28 = 28,738.24/x
  3. Step 3: Cross multiply
    40,209.64x = 55,438.28 × 28,738.24
  4. Step 4: Simplify right side
    40,209.64x = 1,593,198,595.83
  5. Step 5: Solve for x
    x = 1,593,198,595.83/40,209.64
  6. Step 6: Final answer
    x = 39,622.30

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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.