Home / 40,139.53-55,392.54-22,235.69

Finding the Fourth Proportional to 40,139.53, 55,392.54 and 22,235.69

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Solution

The fourth proportional to 40,139.53, 55,392.54 and 22,235.69 is: 30,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,139.53 : 55,392.54 = 22,235.69 : x
  2. Step 2: Convert to fraction form
    40,139.53/55,392.54 = 22,235.69/x
  3. Step 3: Cross multiply
    40,139.53x = 55,392.54 × 22,235.69
  4. Step 4: Simplify right side
    40,139.53x = 1,231,691,347.75
  5. Step 5: Solve for x
    x = 1,231,691,347.75/40,139.53
  6. Step 6: Final answer
    x = 30,685.25

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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.