Home / 27,105.59-40,681.74-18,791.45

Finding the Fourth Proportional to 27,105.59, 40,681.74 and 18,791.45

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Solution

The fourth proportional to 27,105.59, 40,681.74 and 18,791.45 is: 28,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,105.59 : 40,681.74 = 18,791.45 : x
  2. Step 2: Convert to fraction form
    27,105.59/40,681.74 = 18,791.45/x
  3. Step 3: Cross multiply
    27,105.59x = 40,681.74 × 18,791.45
  4. Step 4: Simplify right side
    27,105.59x = 764,468,883.12
  5. Step 5: Solve for x
    x = 764,468,883.12/27,105.59
  6. Step 6: Final answer
    x = 28,203.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.