Home / 31,248.18-43,115.82-18,505.37

Finding the Fourth Proportional to 31,248.18, 43,115.82 and 18,505.37

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Solution

The fourth proportional to 31,248.18, 43,115.82 and 18,505.37 is: 25,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.18 : 43,115.82 = 18,505.37 : x
  2. Step 2: Convert to fraction form
    31,248.18/43,115.82 = 18,505.37/x
  3. Step 3: Cross multiply
    31,248.18x = 43,115.82 × 18,505.37
  4. Step 4: Simplify right side
    31,248.18x = 797,873,986.37
  5. Step 5: Solve for x
    x = 797,873,986.37/31,248.18
  6. Step 6: Final answer
    x = 25,533.45

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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.