Home / 20,628.51-30,932.29-10,082.76

Finding the Fourth Proportional to 20,628.51, 30,932.29 and 10,082.76

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Solution

The fourth proportional to 20,628.51, 30,932.29 and 10,082.76 is: 15,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.51 : 30,932.29 = 10,082.76 : x
  2. Step 2: Convert to fraction form
    20,628.51/30,932.29 = 10,082.76/x
  3. Step 3: Cross multiply
    20,628.51x = 30,932.29 × 10,082.76
  4. Step 4: Simplify right side
    20,628.51x = 311,882,856.32
  5. Step 5: Solve for x
    x = 311,882,856.32/20,628.51
  6. Step 6: Final answer
    x = 15,119.02

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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.