Home / 20,426.14-30,632.31-7,772.89

Finding the Fourth Proportional to 20,426.14, 30,632.31 and 7,772.89

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Solution

The fourth proportional to 20,426.14, 30,632.31 and 7,772.89 is: 11,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.14 : 30,632.31 = 7,772.89 : x
  2. Step 2: Convert to fraction form
    20,426.14/30,632.31 = 7,772.89/x
  3. Step 3: Cross multiply
    20,426.14x = 30,632.31 × 7,772.89
  4. Step 4: Simplify right side
    20,426.14x = 238,101,566.93
  5. Step 5: Solve for x
    x = 238,101,566.93/20,426.14
  6. Step 6: Final answer
    x = 11,656.71

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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.