Home / 21,059.75-31,562.35-8,565.26

Finding the Fourth Proportional to 21,059.75, 31,562.35 and 8,565.26

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Solution

The fourth proportional to 21,059.75, 31,562.35 and 8,565.26 is: 12,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.75 : 31,562.35 = 8,565.26 : x
  2. Step 2: Convert to fraction form
    21,059.75/31,562.35 = 8,565.26/x
  3. Step 3: Cross multiply
    21,059.75x = 31,562.35 × 8,565.26
  4. Step 4: Simplify right side
    21,059.75x = 270,339,554.74
  5. Step 5: Solve for x
    x = 270,339,554.74/21,059.75
  6. Step 6: Final answer
    x = 12,836.79

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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.