Home / 21,766.85-30,038.33-12,336.05

Finding the Fourth Proportional to 21,766.85, 30,038.33 and 12,336.05

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Solution

The fourth proportional to 21,766.85, 30,038.33 and 12,336.05 is: 17,023.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.85 : 30,038.33 = 12,336.05 : x
  2. Step 2: Convert to fraction form
    21,766.85/30,038.33 = 12,336.05/x
  3. Step 3: Cross multiply
    21,766.85x = 30,038.33 × 12,336.05
  4. Step 4: Simplify right side
    21,766.85x = 370,554,279.12
  5. Step 5: Solve for x
    x = 370,554,279.12/21,766.85
  6. Step 6: Final answer
    x = 17,023.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.