Home / 20,483.22-28,267.05-11,530.68

Finding the Fourth Proportional to 20,483.22, 28,267.05 and 11,530.68

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Solution

The fourth proportional to 20,483.22, 28,267.05 and 11,530.68 is: 15,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.22 : 28,267.05 = 11,530.68 : x
  2. Step 2: Convert to fraction form
    20,483.22/28,267.05 = 11,530.68/x
  3. Step 3: Cross multiply
    20,483.22x = 28,267.05 × 11,530.68
  4. Step 4: Simplify right side
    20,483.22x = 325,938,308.09
  5. Step 5: Solve for x
    x = 325,938,308.09/20,483.22
  6. Step 6: Final answer
    x = 15,912.45

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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.