Home / 20,483.42-28,267.66-11,531.24

Finding the Fourth Proportional to 20,483.42, 28,267.66 and 11,531.24

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Solution

The fourth proportional to 20,483.42, 28,267.66 and 11,531.24 is: 15,913.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.42 : 28,267.66 = 11,531.24 : x
  2. Step 2: Convert to fraction form
    20,483.42/28,267.66 = 11,531.24/x
  3. Step 3: Cross multiply
    20,483.42x = 28,267.66 × 11,531.24
  4. Step 4: Simplify right side
    20,483.42x = 325,961,171.70
  5. Step 5: Solve for x
    x = 325,961,171.70/20,483.42
  6. Step 6: Final answer
    x = 15,913.42

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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.