Home / 19,388.28-29,082.57-10,618.41

Finding the Fourth Proportional to 19,388.28, 29,082.57 and 10,618.41

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Solution

The fourth proportional to 19,388.28, 29,082.57 and 10,618.41 is: 15,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.28 : 29,082.57 = 10,618.41 : x
  2. Step 2: Convert to fraction form
    19,388.28/29,082.57 = 10,618.41/x
  3. Step 3: Cross multiply
    19,388.28x = 29,082.57 × 10,618.41
  4. Step 4: Simplify right side
    19,388.28x = 308,810,652.11
  5. Step 5: Solve for x
    x = 308,810,652.11/19,388.28
  6. Step 6: Final answer
    x = 15,927.70

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1.5x scale

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.