Home / 19,886.54-27,442.80-10,933.20

Finding the Fourth Proportional to 19,886.54, 27,442.80 and 10,933.20

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Solution

The fourth proportional to 19,886.54, 27,442.80 and 10,933.20 is: 15,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.54 : 27,442.80 = 10,933.20 : x
  2. Step 2: Convert to fraction form
    19,886.54/27,442.80 = 10,933.20/x
  3. Step 3: Cross multiply
    19,886.54x = 27,442.80 × 10,933.20
  4. Step 4: Simplify right side
    19,886.54x = 300,037,620.96
  5. Step 5: Solve for x
    x = 300,037,620.96/19,886.54
  6. Step 6: Final answer
    x = 15,087.48

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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.