Home / 40,145.50-55,399.54-22,240.11

Finding the Fourth Proportional to 40,145.50, 55,399.54 and 22,240.11

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Solution

The fourth proportional to 40,145.50, 55,399.54 and 22,240.11 is: 30,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.50 : 55,399.54 = 22,240.11 : x
  2. Step 2: Convert to fraction form
    40,145.50/55,399.54 = 22,240.11/x
  3. Step 3: Cross multiply
    40,145.50x = 55,399.54 × 22,240.11
  4. Step 4: Simplify right side
    40,145.50x = 1,232,091,863.55
  5. Step 5: Solve for x
    x = 1,232,091,863.55/40,145.50
  6. Step 6: Final answer
    x = 30,690.66

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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.