Home / 31,420.20-43,360.09-17,080.03

Finding the Fourth Proportional to 31,420.20, 43,360.09 and 17,080.03

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Solution

The fourth proportional to 31,420.20, 43,360.09 and 17,080.03 is: 23,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.20 : 43,360.09 = 17,080.03 : x
  2. Step 2: Convert to fraction form
    31,420.20/43,360.09 = 17,080.03/x
  3. Step 3: Cross multiply
    31,420.20x = 43,360.09 × 17,080.03
  4. Step 4: Simplify right side
    31,420.20x = 740,591,638.00
  5. Step 5: Solve for x
    x = 740,591,638.00/31,420.20
  6. Step 6: Final answer
    x = 23,570.56

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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.