Home / 19,854.89-27,399.54-10,902.31

Finding the Fourth Proportional to 19,854.89, 27,399.54 and 10,902.31

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Solution

The fourth proportional to 19,854.89, 27,399.54 and 10,902.31 is: 15,045.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.89 : 27,399.54 = 10,902.31 : x
  2. Step 2: Convert to fraction form
    19,854.89/27,399.54 = 10,902.31/x
  3. Step 3: Cross multiply
    19,854.89x = 27,399.54 × 10,902.31
  4. Step 4: Simplify right side
    19,854.89x = 298,718,251.32
  5. Step 5: Solve for x
    x = 298,718,251.32/19,854.89
  6. Step 6: Final answer
    x = 15,045.07

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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.