Home / 20,506.38-28,298.80-11,074.94

Finding the Fourth Proportional to 20,506.38, 28,298.80 and 11,074.94

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Solution

The fourth proportional to 20,506.38, 28,298.80 and 11,074.94 is: 15,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.38 : 28,298.80 = 11,074.94 : x
  2. Step 2: Convert to fraction form
    20,506.38/28,298.80 = 11,074.94/x
  3. Step 3: Cross multiply
    20,506.38x = 28,298.80 × 11,074.94
  4. Step 4: Simplify right side
    20,506.38x = 313,407,512.07
  5. Step 5: Solve for x
    x = 313,407,512.07/20,506.38
  6. Step 6: Final answer
    x = 15,283.41

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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.