Home / 31,420.75-43,360.70-17,273.70

Finding the Fourth Proportional to 31,420.75, 43,360.70 and 17,273.70

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Solution

The fourth proportional to 31,420.75, 43,360.70 and 17,273.70 is: 23,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.75 : 43,360.70 = 17,273.70 : x
  2. Step 2: Convert to fraction form
    31,420.75/43,360.70 = 17,273.70/x
  3. Step 3: Cross multiply
    31,420.75x = 43,360.70 × 17,273.70
  4. Step 4: Simplify right side
    31,420.75x = 748,999,723.59
  5. Step 5: Solve for x
    x = 748,999,723.59/31,420.75
  6. Step 6: Final answer
    x = 23,837.74

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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.