Home / 31,765.02-43,832.56-18,340.59

Finding the Fourth Proportional to 31,765.02, 43,832.56 and 18,340.59

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Solution

The fourth proportional to 31,765.02, 43,832.56 and 18,340.59 is: 25,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.02 : 43,832.56 = 18,340.59 : x
  2. Step 2: Convert to fraction form
    31,765.02/43,832.56 = 18,340.59/x
  3. Step 3: Cross multiply
    31,765.02x = 43,832.56 × 18,340.59
  4. Step 4: Simplify right side
    31,765.02x = 803,915,011.61
  5. Step 5: Solve for x
    x = 803,915,011.61/31,765.02
  6. Step 6: Final answer
    x = 25,308.19

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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.