Home / 20,360.61-28,097.63-11,286.56

Finding the Fourth Proportional to 20,360.61, 28,097.63 and 11,286.56

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Solution

The fourth proportional to 20,360.61, 28,097.63 and 11,286.56 is: 15,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.61 : 28,097.63 = 11,286.56 : x
  2. Step 2: Convert to fraction form
    20,360.61/28,097.63 = 11,286.56/x
  3. Step 3: Cross multiply
    20,360.61x = 28,097.63 × 11,286.56
  4. Step 4: Simplify right side
    20,360.61x = 317,125,389.93
  5. Step 5: Solve for x
    x = 317,125,389.93/20,360.61
  6. Step 6: Final answer
    x = 15,575.44

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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.