Home / 20,838.66-28,755.53-11,763.53

Finding the Fourth Proportional to 20,838.66, 28,755.53 and 11,763.53

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Solution

The fourth proportional to 20,838.66, 28,755.53 and 11,763.53 is: 16,232.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.66 : 28,755.53 = 11,763.53 : x
  2. Step 2: Convert to fraction form
    20,838.66/28,755.53 = 11,763.53/x
  3. Step 3: Cross multiply
    20,838.66x = 28,755.53 × 11,763.53
  4. Step 4: Simplify right side
    20,838.66x = 338,266,337.23
  5. Step 5: Solve for x
    x = 338,266,337.23/20,838.66
  6. Step 6: Final answer
    x = 16,232.63

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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.