Home / 40,428.78-55,814.87-27,022.74

Finding the Fourth Proportional to 40,428.78, 55,814.87 and 27,022.74

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Solution

The fourth proportional to 40,428.78, 55,814.87 and 27,022.74 is: 37,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,428.78 : 55,814.87 = 27,022.74 : x
  2. Step 2: Convert to fraction form
    40,428.78/55,814.87 = 27,022.74/x
  3. Step 3: Cross multiply
    40,428.78x = 55,814.87 × 27,022.74
  4. Step 4: Simplify right side
    40,428.78x = 1,508,270,720.14
  5. Step 5: Solve for x
    x = 1,508,270,720.14/40,428.78
  6. Step 6: Final answer
    x = 37,306.86

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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.