Home / 20,483.28-30,739.50-15,807.96

Finding the Fourth Proportional to 20,483.28, 30,739.50 and 15,807.96

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Solution

The fourth proportional to 20,483.28, 30,739.50 and 15,807.96 is: 23,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.28 : 30,739.50 = 15,807.96 : x
  2. Step 2: Convert to fraction form
    20,483.28/30,739.50 = 15,807.96/x
  3. Step 3: Cross multiply
    20,483.28x = 30,739.50 × 15,807.96
  4. Step 4: Simplify right side
    20,483.28x = 485,928,786.42
  5. Step 5: Solve for x
    x = 485,928,786.42/20,483.28
  6. Step 6: Final answer
    x = 23,723.19

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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.