Home / 31,420.85-43,359.62-17,273.57

Finding the Fourth Proportional to 31,420.85, 43,359.62 and 17,273.57

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Solution

The fourth proportional to 31,420.85, 43,359.62 and 17,273.57 is: 23,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.85 : 43,359.62 = 17,273.57 : x
  2. Step 2: Convert to fraction form
    31,420.85/43,359.62 = 17,273.57/x
  3. Step 3: Cross multiply
    31,420.85x = 43,359.62 × 17,273.57
  4. Step 4: Simplify right side
    31,420.85x = 748,975,128.08
  5. Step 5: Solve for x
    x = 748,975,128.08/31,420.85
  6. Step 6: Final answer
    x = 23,836.89

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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.