Home / 19,854.45-27,399.51-10,902.33

Finding the Fourth Proportional to 19,854.45, 27,399.51 and 10,902.33

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Solution

The fourth proportional to 19,854.45, 27,399.51 and 10,902.33 is: 15,045.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.45 : 27,399.51 = 10,902.33 : x
  2. Step 2: Convert to fraction form
    19,854.45/27,399.51 = 10,902.33/x
  3. Step 3: Cross multiply
    19,854.45x = 27,399.51 × 10,902.33
  4. Step 4: Simplify right side
    19,854.45x = 298,718,499.86
  5. Step 5: Solve for x
    x = 298,718,499.86/19,854.45
  6. Step 6: Final answer
    x = 15,045.42

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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.