Home / 22,766.90-31,418.49-12,695.99

Finding the Fourth Proportional to 22,766.90, 31,418.49 and 12,695.99

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Solution

The fourth proportional to 22,766.90, 31,418.49 and 12,695.99 is: 17,520.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,766.90 : 31,418.49 = 12,695.99 : x
  2. Step 2: Convert to fraction form
    22,766.90/31,418.49 = 12,695.99/x
  3. Step 3: Cross multiply
    22,766.90x = 31,418.49 × 12,695.99
  4. Step 4: Simplify right side
    22,766.90x = 398,888,813.74
  5. Step 5: Solve for x
    x = 398,888,813.74/22,766.90
  6. Step 6: Final answer
    x = 17,520.56

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1.5x scale

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.