Home / 20,358.87-30,538.31-5,566.66

Finding the Fourth Proportional to 20,358.87, 30,538.31 and 5,566.66

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Solution

The fourth proportional to 20,358.87, 30,538.31 and 5,566.66 is: 8,349.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.87 : 30,538.31 = 5,566.66 : x
  2. Step 2: Convert to fraction form
    20,358.87/30,538.31 = 5,566.66/x
  3. Step 3: Cross multiply
    20,358.87x = 30,538.31 × 5,566.66
  4. Step 4: Simplify right side
    20,358.87x = 169,996,399.08
  5. Step 5: Solve for x
    x = 169,996,399.08/20,358.87
  6. Step 6: Final answer
    x = 8,349.99

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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.