Home / 20,495.15-28,282.82-11,542.68

Finding the Fourth Proportional to 20,495.15, 28,282.82 and 11,542.68

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Solution

The fourth proportional to 20,495.15, 28,282.82 and 11,542.68 is: 15,928.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.15 : 28,282.82 = 11,542.68 : x
  2. Step 2: Convert to fraction form
    20,495.15/28,282.82 = 11,542.68/x
  3. Step 3: Cross multiply
    20,495.15x = 28,282.82 × 11,542.68
  4. Step 4: Simplify right side
    20,495.15x = 326,459,483.04
  5. Step 5: Solve for x
    x = 326,459,483.04/20,495.15
  6. Step 6: Final answer
    x = 15,928.63

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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.