Home / 20,484.28-30,741-15,808.96

Finding the Fourth Proportional to 20,484.28, 30,741 and 15,808.96

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Solution

The fourth proportional to 20,484.28, 30,741 and 15,808.96 is: 23,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.28 : 30,741 = 15,808.96 : x
  2. Step 2: Convert to fraction form
    20,484.28/30,741 = 15,808.96/x
  3. Step 3: Cross multiply
    20,484.28x = 30,741 × 15,808.96
  4. Step 4: Simplify right side
    20,484.28x = 485,983,239.36
  5. Step 5: Solve for x
    x = 485,983,239.36/20,484.28
  6. Step 6: Final answer
    x = 23,724.69

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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.