Home / 38,581.11-57,856.95-13,616.51

Finding the Fourth Proportional to 38,581.11, 57,856.95 and 13,616.51

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Solution

The fourth proportional to 38,581.11, 57,856.95 and 13,616.51 is: 20,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.11 : 57,856.95 = 13,616.51 : x
  2. Step 2: Convert to fraction form
    38,581.11/57,856.95 = 13,616.51/x
  3. Step 3: Cross multiply
    38,581.11x = 57,856.95 × 13,616.51
  4. Step 4: Simplify right side
    38,581.11x = 787,809,448.96
  5. Step 5: Solve for x
    x = 787,809,448.96/38,581.11
  6. Step 6: Final answer
    x = 20,419.56

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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.