Home / 21,059.66-31,562.23-8,565.17

Finding the Fourth Proportional to 21,059.66, 31,562.23 and 8,565.17

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Solution

The fourth proportional to 21,059.66, 31,562.23 and 8,565.17 is: 12,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.66 : 31,562.23 = 8,565.17 : x
  2. Step 2: Convert to fraction form
    21,059.66/31,562.23 = 8,565.17/x
  3. Step 3: Cross multiply
    21,059.66x = 31,562.23 × 8,565.17
  4. Step 4: Simplify right side
    21,059.66x = 270,335,860.89
  5. Step 5: Solve for x
    x = 270,335,860.89/21,059.66
  6. Step 6: Final answer
    x = 12,836.67

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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.