Home / 20,521.12-30,785.84-6,483.32

Finding the Fourth Proportional to 20,521.12, 30,785.84 and 6,483.32

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Solution

The fourth proportional to 20,521.12, 30,785.84 and 6,483.32 is: 9,726.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,521.12 : 30,785.84 = 6,483.32 : x
  2. Step 2: Convert to fraction form
    20,521.12/30,785.84 = 6,483.32/x
  3. Step 3: Cross multiply
    20,521.12x = 30,785.84 × 6,483.32
  4. Step 4: Simplify right side
    20,521.12x = 199,594,452.19
  5. Step 5: Solve for x
    x = 199,594,452.19/20,521.12
  6. Step 6: Final answer
    x = 9,726.29

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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.