Home / 20,823.35-28,736.13-11,263.24

Finding the Fourth Proportional to 20,823.35, 28,736.13 and 11,263.24

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Solution

The fourth proportional to 20,823.35, 28,736.13 and 11,263.24 is: 15,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823.35 : 28,736.13 = 11,263.24 : x
  2. Step 2: Convert to fraction form
    20,823.35/28,736.13 = 11,263.24/x
  3. Step 3: Cross multiply
    20,823.35x = 28,736.13 × 11,263.24
  4. Step 4: Simplify right side
    20,823.35x = 323,661,845.38
  5. Step 5: Solve for x
    x = 323,661,845.38/20,823.35
  6. Step 6: Final answer
    x = 15,543.22

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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.