Home / 31,573.12-43,563.02-18,148.20

Finding the Fourth Proportional to 31,573.12, 43,563.02 and 18,148.20

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Solution

The fourth proportional to 31,573.12, 43,563.02 and 18,148.20 is: 25,039.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,573.12 : 43,563.02 = 18,148.20 : x
  2. Step 2: Convert to fraction form
    31,573.12/43,563.02 = 18,148.20/x
  3. Step 3: Cross multiply
    31,573.12x = 43,563.02 × 18,148.20
  4. Step 4: Simplify right side
    31,573.12x = 790,590,399.56
  5. Step 5: Solve for x
    x = 790,590,399.56/31,573.12
  6. Step 6: Final answer
    x = 25,039.98

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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.