Home / 31,810.71-43,902.29-18,200.02

Finding the Fourth Proportional to 31,810.71, 43,902.29 and 18,200.02

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Solution

The fourth proportional to 31,810.71, 43,902.29 and 18,200.02 is: 25,118.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.71 : 43,902.29 = 18,200.02 : x
  2. Step 2: Convert to fraction form
    31,810.71/43,902.29 = 18,200.02/x
  3. Step 3: Cross multiply
    31,810.71x = 43,902.29 × 18,200.02
  4. Step 4: Simplify right side
    31,810.71x = 799,022,556.05
  5. Step 5: Solve for x
    x = 799,022,556.05/31,810.71
  6. Step 6: Final answer
    x = 25,118.04

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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.