Home / 20,192.40-30,287.16-6,345.36

Finding the Fourth Proportional to 20,192.40, 30,287.16 and 6,345.36

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Solution

The fourth proportional to 20,192.40, 30,287.16 and 6,345.36 is: 9,517.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.40 : 30,287.16 = 6,345.36 : x
  2. Step 2: Convert to fraction form
    20,192.40/30,287.16 = 6,345.36/x
  3. Step 3: Cross multiply
    20,192.40x = 30,287.16 × 6,345.36
  4. Step 4: Simplify right side
    20,192.40x = 192,182,933.58
  5. Step 5: Solve for x
    x = 192,182,933.58/20,192.40
  6. Step 6: Final answer
    x = 9,517.59

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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.