Home / 20,529.14-28,330.26-11,097.70

Finding the Fourth Proportional to 20,529.14, 28,330.26 and 11,097.70

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Solution

The fourth proportional to 20,529.14, 28,330.26 and 11,097.70 is: 15,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.14 : 28,330.26 = 11,097.70 : x
  2. Step 2: Convert to fraction form
    20,529.14/28,330.26 = 11,097.70/x
  3. Step 3: Cross multiply
    20,529.14x = 28,330.26 × 11,097.70
  4. Step 4: Simplify right side
    20,529.14x = 314,400,670.91
  5. Step 5: Solve for x
    x = 314,400,670.91/20,529.14
  6. Step 6: Final answer
    x = 15,314.85

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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.