Home / 20,021.04-27,629.12-11,068.48

Finding the Fourth Proportional to 20,021.04, 27,629.12 and 11,068.48

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Solution

The fourth proportional to 20,021.04, 27,629.12 and 11,068.48 is: 15,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.04 : 27,629.12 = 11,068.48 : x
  2. Step 2: Convert to fraction form
    20,021.04/27,629.12 = 11,068.48/x
  3. Step 3: Cross multiply
    20,021.04x = 27,629.12 × 11,068.48
  4. Step 4: Simplify right side
    20,021.04x = 305,812,362.14
  5. Step 5: Solve for x
    x = 305,812,362.14/20,021.04
  6. Step 6: Final answer
    x = 15,274.55

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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.