Home / 18,878.47-28,327.23-13,367.23

Finding the Fourth Proportional to 18,878.47, 28,327.23 and 13,367.23

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Solution

The fourth proportional to 18,878.47, 28,327.23 and 13,367.23 is: 20,057.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.47 : 28,327.23 = 13,367.23 : x
  2. Step 2: Convert to fraction form
    18,878.47/28,327.23 = 13,367.23/x
  3. Step 3: Cross multiply
    18,878.47x = 28,327.23 × 13,367.23
  4. Step 4: Simplify right side
    18,878.47x = 378,656,598.67
  5. Step 5: Solve for x
    x = 378,656,598.67/18,878.47
  6. Step 6: Final answer
    x = 20,057.59

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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.