Home / 40,191.58-55,453.07-31,667.28

Finding the Fourth Proportional to 40,191.58, 55,453.07 and 31,667.28

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Solution

The fourth proportional to 40,191.58, 55,453.07 and 31,667.28 is: 43,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,191.58 : 55,453.07 = 31,667.28 : x
  2. Step 2: Convert to fraction form
    40,191.58/55,453.07 = 31,667.28/x
  3. Step 3: Cross multiply
    40,191.58x = 55,453.07 × 31,667.28
  4. Step 4: Simplify right side
    40,191.58x = 1,756,047,894.55
  5. Step 5: Solve for x
    x = 1,756,047,894.55/40,191.58
  6. Step 6: Final answer
    x = 43,691.93

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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.