Home / 20,521.05-30,776.09-5,727.36

Finding the Fourth Proportional to 20,521.05, 30,776.09 and 5,727.36

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Solution

The fourth proportional to 20,521.05, 30,776.09 and 5,727.36 is: 8,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,521.05 : 30,776.09 = 5,727.36 : x
  2. Step 2: Convert to fraction form
    20,521.05/30,776.09 = 5,727.36/x
  3. Step 3: Cross multiply
    20,521.05x = 30,776.09 × 5,727.36
  4. Step 4: Simplify right side
    20,521.05x = 176,265,746.82
  5. Step 5: Solve for x
    x = 176,265,746.82/20,521.05
  6. Step 6: Final answer
    x = 8,589.51

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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.