Home / 18,921.59-28,382.33-10,493.23

Finding the Fourth Proportional to 18,921.59, 28,382.33 and 10,493.23

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Solution

The fourth proportional to 18,921.59, 28,382.33 and 10,493.23 is: 15,739.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.59 : 28,382.33 = 10,493.23 : x
  2. Step 2: Convert to fraction form
    18,921.59/28,382.33 = 10,493.23/x
  3. Step 3: Cross multiply
    18,921.59x = 28,382.33 × 10,493.23
  4. Step 4: Simplify right side
    18,921.59x = 297,822,316.63
  5. Step 5: Solve for x
    x = 297,822,316.63/18,921.59
  6. Step 6: Final answer
    x = 15,739.81

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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.