Home / 19,049.28-26,299.68-15,086.40

Finding the Fourth Proportional to 19,049.28, 26,299.68 and 15,086.40

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Solution

The fourth proportional to 19,049.28, 26,299.68 and 15,086.40 is: 20,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,049.28 : 26,299.68 = 15,086.40 : x
  2. Step 2: Convert to fraction form
    19,049.28/26,299.68 = 15,086.40/x
  3. Step 3: Cross multiply
    19,049.28x = 26,299.68 × 15,086.40
  4. Step 4: Simplify right side
    19,049.28x = 396,767,492.35
  5. Step 5: Solve for x
    x = 396,767,492.35/19,049.28
  6. Step 6: Final answer
    x = 20,828.48

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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.