Home / 20,467.86-30,701.79-9,210.05

Finding the Fourth Proportional to 20,467.86, 30,701.79 and 9,210.05

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Solution

The fourth proportional to 20,467.86, 30,701.79 and 9,210.05 is: 13,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.86 : 30,701.79 = 9,210.05 : x
  2. Step 2: Convert to fraction form
    20,467.86/30,701.79 = 9,210.05/x
  3. Step 3: Cross multiply
    20,467.86x = 30,701.79 × 9,210.05
  4. Step 4: Simplify right side
    20,467.86x = 282,764,867.48
  5. Step 5: Solve for x
    x = 282,764,867.48/20,467.86
  6. Step 6: Final answer
    x = 13,815.07

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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.