Home / 20,726.36-31,065.18-9,609.65

Finding the Fourth Proportional to 20,726.36, 31,065.18 and 9,609.65

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Solution

The fourth proportional to 20,726.36, 31,065.18 and 9,609.65 is: 14,403.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.36 : 31,065.18 = 9,609.65 : x
  2. Step 2: Convert to fraction form
    20,726.36/31,065.18 = 9,609.65/x
  3. Step 3: Cross multiply
    20,726.36x = 31,065.18 × 9,609.65
  4. Step 4: Simplify right side
    20,726.36x = 298,525,351.66
  5. Step 5: Solve for x
    x = 298,525,351.66/20,726.36
  6. Step 6: Final answer
    x = 14,403.18

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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.