Home / 20,510.30-30,767.11-5,719.37

Finding the Fourth Proportional to 20,510.30, 30,767.11 and 5,719.37

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Solution

The fourth proportional to 20,510.30, 30,767.11 and 5,719.37 is: 8,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.30 : 30,767.11 = 5,719.37 : x
  2. Step 2: Convert to fraction form
    20,510.30/30,767.11 = 5,719.37/x
  3. Step 3: Cross multiply
    20,510.30x = 30,767.11 × 5,719.37
  4. Step 4: Simplify right side
    20,510.30x = 175,968,317.79
  5. Step 5: Solve for x
    x = 175,968,317.79/20,510.30
  6. Step 6: Final answer
    x = 8,579.51

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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.