Home / 31,645.13-43,675.74-19,069.88

Finding the Fourth Proportional to 31,645.13, 43,675.74 and 19,069.88

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Solution

The fourth proportional to 31,645.13, 43,675.74 and 19,069.88 is: 26,319.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.13 : 43,675.74 = 19,069.88 : x
  2. Step 2: Convert to fraction form
    31,645.13/43,675.74 = 19,069.88/x
  3. Step 3: Cross multiply
    31,645.13x = 43,675.74 × 19,069.88
  4. Step 4: Simplify right side
    31,645.13x = 832,890,902.33
  5. Step 5: Solve for x
    x = 832,890,902.33/31,645.13
  6. Step 6: Final answer
    x = 26,319.72

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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.