Home / 20,668.65-28,521.46-11,593.51

Finding the Fourth Proportional to 20,668.65, 28,521.46 and 11,593.51

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Solution

The fourth proportional to 20,668.65, 28,521.46 and 11,593.51 is: 15,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.65 : 28,521.46 = 11,593.51 : x
  2. Step 2: Convert to fraction form
    20,668.65/28,521.46 = 11,593.51/x
  3. Step 3: Cross multiply
    20,668.65x = 28,521.46 × 11,593.51
  4. Step 4: Simplify right side
    20,668.65x = 330,663,831.72
  5. Step 5: Solve for x
    x = 330,663,831.72/20,668.65
  6. Step 6: Final answer
    x = 15,998.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.