Home / 20,005.96-30,015.42-9,616.36

Finding the Fourth Proportional to 20,005.96, 30,015.42 and 9,616.36

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Solution

The fourth proportional to 20,005.96, 30,015.42 and 9,616.36 is: 14,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.96 : 30,015.42 = 9,616.36 : x
  2. Step 2: Convert to fraction form
    20,005.96/30,015.42 = 9,616.36/x
  3. Step 3: Cross multiply
    20,005.96x = 30,015.42 × 9,616.36
  4. Step 4: Simplify right side
    20,005.96x = 288,639,084.27
  5. Step 5: Solve for x
    x = 288,639,084.27/20,005.96
  6. Step 6: Final answer
    x = 14,427.65

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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.