Home / 20,082.54-27,679.32-13,356.16

Finding the Fourth Proportional to 20,082.54, 27,679.32 and 13,356.16

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Solution

The fourth proportional to 20,082.54, 27,679.32 and 13,356.16 is: 18,408.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.54 : 27,679.32 = 13,356.16 : x
  2. Step 2: Convert to fraction form
    20,082.54/27,679.32 = 13,356.16/x
  3. Step 3: Cross multiply
    20,082.54x = 27,679.32 × 13,356.16
  4. Step 4: Simplify right side
    20,082.54x = 369,689,357.41
  5. Step 5: Solve for x
    x = 369,689,357.41/20,082.54
  6. Step 6: Final answer
    x = 18,408.49

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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.