Home / 40,140.39-55,393.74-22,236.57

Finding the Fourth Proportional to 40,140.39, 55,393.74 and 22,236.57

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Solution

The fourth proportional to 40,140.39, 55,393.74 and 22,236.57 is: 30,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140.39 : 55,393.74 = 22,236.57 : x
  2. Step 2: Convert to fraction form
    40,140.39/55,393.74 = 22,236.57/x
  3. Step 3: Cross multiply
    40,140.39x = 55,393.74 × 22,236.57
  4. Step 4: Simplify right side
    40,140.39x = 1,231,766,777.07
  5. Step 5: Solve for x
    x = 1,231,766,777.07/40,140.39
  6. Step 6: Final answer
    x = 30,686.47

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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.