Home / 20,357.60-30,531.57-11,476.86

Finding the Fourth Proportional to 20,357.60, 30,531.57 and 11,476.86

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Solution

The fourth proportional to 20,357.60, 30,531.57 and 11,476.86 is: 17,212.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.60 : 30,531.57 = 11,476.86 : x
  2. Step 2: Convert to fraction form
    20,357.60/30,531.57 = 11,476.86/x
  3. Step 3: Cross multiply
    20,357.60x = 30,531.57 × 11,476.86
  4. Step 4: Simplify right side
    20,357.60x = 350,406,396.94
  5. Step 5: Solve for x
    x = 350,406,396.94/20,357.60
  6. Step 6: Final answer
    x = 17,212.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.