Home / 31,888.44-47,788.90-20,180.72

Finding the Fourth Proportional to 31,888.44, 47,788.90 and 20,180.72

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Solution

The fourth proportional to 31,888.44, 47,788.90 and 20,180.72 is: 30,243.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888.44 : 47,788.90 = 20,180.72 : x
  2. Step 2: Convert to fraction form
    31,888.44/47,788.90 = 20,180.72/x
  3. Step 3: Cross multiply
    31,888.44x = 47,788.90 × 20,180.72
  4. Step 4: Simplify right side
    31,888.44x = 964,414,410.01
  5. Step 5: Solve for x
    x = 964,414,410.01/31,888.44
  6. Step 6: Final answer
    x = 30,243.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.