Home / 20,565.84-30,854.40-8,876.52

Finding the Fourth Proportional to 20,565.84, 30,854.40 and 8,876.52

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Solution

The fourth proportional to 20,565.84, 30,854.40 and 8,876.52 is: 13,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.84 : 30,854.40 = 8,876.52 : x
  2. Step 2: Convert to fraction form
    20,565.84/30,854.40 = 8,876.52/x
  3. Step 3: Cross multiply
    20,565.84x = 30,854.40 × 8,876.52
  4. Step 4: Simplify right side
    20,565.84x = 273,879,698.69
  5. Step 5: Solve for x
    x = 273,879,698.69/20,565.84
  6. Step 6: Final answer
    x = 13,317.21

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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.