Home / 25,565.91-38,297.81-20,309.82

Finding the Fourth Proportional to 25,565.91, 38,297.81 and 20,309.82

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Solution

The fourth proportional to 25,565.91, 38,297.81 and 20,309.82 is: 30,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.91 : 38,297.81 = 20,309.82 : x
  2. Step 2: Convert to fraction form
    25,565.91/38,297.81 = 20,309.82/x
  3. Step 3: Cross multiply
    25,565.91x = 38,297.81 × 20,309.82
  4. Step 4: Simplify right side
    25,565.91x = 777,821,678.27
  5. Step 5: Solve for x
    x = 777,821,678.27/25,565.91
  6. Step 6: Final answer
    x = 30,424.17

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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.