Home / 20,752.14-28,637.94-11,320.68

Finding the Fourth Proportional to 20,752.14, 28,637.94 and 11,320.68

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Solution

The fourth proportional to 20,752.14, 28,637.94 and 11,320.68 is: 15,622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.14 : 28,637.94 = 11,320.68 : x
  2. Step 2: Convert to fraction form
    20,752.14/28,637.94 = 11,320.68/x
  3. Step 3: Cross multiply
    20,752.14x = 28,637.94 × 11,320.68
  4. Step 4: Simplify right side
    20,752.14x = 324,200,954.60
  5. Step 5: Solve for x
    x = 324,200,954.60/20,752.14
  6. Step 6: Final answer
    x = 15,622.53

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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.