Home / 20,344.35-30,521.19-7,864.48

Finding the Fourth Proportional to 20,344.35, 30,521.19 and 7,864.48

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Solution

The fourth proportional to 20,344.35, 30,521.19 and 7,864.48 is: 11,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.35 : 30,521.19 = 7,864.48 : x
  2. Step 2: Convert to fraction form
    20,344.35/30,521.19 = 7,864.48/x
  3. Step 3: Cross multiply
    20,344.35x = 30,521.19 × 7,864.48
  4. Step 4: Simplify right side
    20,344.35x = 240,033,288.33
  5. Step 5: Solve for x
    x = 240,033,288.33/20,344.35
  6. Step 6: Final answer
    x = 11,798.52

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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.