Home / 20,355.08-30,530.19-5,565.29

Finding the Fourth Proportional to 20,355.08, 30,530.19 and 5,565.29

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Solution

The fourth proportional to 20,355.08, 30,530.19 and 5,565.29 is: 8,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.08 : 30,530.19 = 5,565.29 : x
  2. Step 2: Convert to fraction form
    20,355.08/30,530.19 = 5,565.29/x
  3. Step 3: Cross multiply
    20,355.08x = 30,530.19 × 5,565.29
  4. Step 4: Simplify right side
    20,355.08x = 169,909,361.11
  5. Step 5: Solve for x
    x = 169,909,361.11/20,355.08
  6. Step 6: Final answer
    x = 8,347.27

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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.