Home / 20,399.33-30,602.09-7,248.58

Finding the Fourth Proportional to 20,399.33, 30,602.09 and 7,248.58

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Solution

The fourth proportional to 20,399.33, 30,602.09 and 7,248.58 is: 10,873.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.33 : 30,602.09 = 7,248.58 : x
  2. Step 2: Convert to fraction form
    20,399.33/30,602.09 = 7,248.58/x
  3. Step 3: Cross multiply
    20,399.33x = 30,602.09 × 7,248.58
  4. Step 4: Simplify right side
    20,399.33x = 221,821,697.53
  5. Step 5: Solve for x
    x = 221,821,697.53/20,399.33
  6. Step 6: Final answer
    x = 10,873.97

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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.