Home / 31,595.73-43,604.40-18,171.20

Finding the Fourth Proportional to 31,595.73, 43,604.40 and 18,171.20

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Solution

The fourth proportional to 31,595.73, 43,604.40 and 18,171.20 is: 25,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,595.73 : 43,604.40 = 18,171.20 : x
  2. Step 2: Convert to fraction form
    31,595.73/43,604.40 = 18,171.20/x
  3. Step 3: Cross multiply
    31,595.73x = 43,604.40 × 18,171.20
  4. Step 4: Simplify right side
    31,595.73x = 792,344,055.26
  5. Step 5: Solve for x
    x = 792,344,055.26/31,595.73
  6. Step 6: Final answer
    x = 25,077.57

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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.