Home / 31,202.72-43,059.84-18,627.20

Finding the Fourth Proportional to 31,202.72, 43,059.84 and 18,627.20

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Solution

The fourth proportional to 31,202.72, 43,059.84 and 18,627.20 is: 25,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,202.72 : 43,059.84 = 18,627.20 : x
  2. Step 2: Convert to fraction form
    31,202.72/43,059.84 = 18,627.20/x
  3. Step 3: Cross multiply
    31,202.72x = 43,059.84 × 18,627.20
  4. Step 4: Simplify right side
    31,202.72x = 802,084,251.65
  5. Step 5: Solve for x
    x = 802,084,251.65/31,202.72
  6. Step 6: Final answer
    x = 25,705.59

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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.