Home / 20,740.53-31,115.40-5,948.31

Finding the Fourth Proportional to 20,740.53, 31,115.40 and 5,948.31

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Solution

The fourth proportional to 20,740.53, 31,115.40 and 5,948.31 is: 8,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740.53 : 31,115.40 = 5,948.31 : x
  2. Step 2: Convert to fraction form
    20,740.53/31,115.40 = 5,948.31/x
  3. Step 3: Cross multiply
    20,740.53x = 31,115.40 × 5,948.31
  4. Step 4: Simplify right side
    20,740.53x = 185,084,067.28
  5. Step 5: Solve for x
    x = 185,084,067.28/20,740.53
  6. Step 6: Final answer
    x = 8,923.79

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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.