Home / 19,869.32-27,419.58-11,371.01

Finding the Fourth Proportional to 19,869.32, 27,419.58 and 11,371.01

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Solution

The fourth proportional to 19,869.32, 27,419.58 and 11,371.01 is: 15,691.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.32 : 27,419.58 = 11,371.01 : x
  2. Step 2: Convert to fraction form
    19,869.32/27,419.58 = 11,371.01/x
  3. Step 3: Cross multiply
    19,869.32x = 27,419.58 × 11,371.01
  4. Step 4: Simplify right side
    19,869.32x = 311,788,181.28
  5. Step 5: Solve for x
    x = 311,788,181.28/19,869.32
  6. Step 6: Final answer
    x = 15,691.94

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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.