Home / 20,910.59-31,363.54-6,119.62

Finding the Fourth Proportional to 20,910.59, 31,363.54 and 6,119.62

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Solution

The fourth proportional to 20,910.59, 31,363.54 and 6,119.62 is: 9,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910.59 : 31,363.54 = 6,119.62 : x
  2. Step 2: Convert to fraction form
    20,910.59/31,363.54 = 6,119.62/x
  3. Step 3: Cross multiply
    20,910.59x = 31,363.54 × 6,119.62
  4. Step 4: Simplify right side
    20,910.59x = 191,932,946.65
  5. Step 5: Solve for x
    x = 191,932,946.65/20,910.59
  6. Step 6: Final answer
    x = 9,178.74

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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.