Home / 31,168.78-43,002.25-17,736.67

Finding the Fourth Proportional to 31,168.78, 43,002.25 and 17,736.67

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Solution

The fourth proportional to 31,168.78, 43,002.25 and 17,736.67 is: 24,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,168.78 : 43,002.25 = 17,736.67 : x
  2. Step 2: Convert to fraction form
    31,168.78/43,002.25 = 17,736.67/x
  3. Step 3: Cross multiply
    31,168.78x = 43,002.25 × 17,736.67
  4. Step 4: Simplify right side
    31,168.78x = 762,716,726.92
  5. Step 5: Solve for x
    x = 762,716,726.92/31,168.78
  6. Step 6: Final answer
    x = 24,470.54

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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.