Home / 20,021.47-27,628.56-11,068.47

Finding the Fourth Proportional to 20,021.47, 27,628.56 and 11,068.47

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Solution

The fourth proportional to 20,021.47, 27,628.56 and 11,068.47 is: 15,273.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.47 : 27,628.56 = 11,068.47 : x
  2. Step 2: Convert to fraction form
    20,021.47/27,628.56 = 11,068.47/x
  3. Step 3: Cross multiply
    20,021.47x = 27,628.56 × 11,068.47
  4. Step 4: Simplify right side
    20,021.47x = 305,805,887.50
  5. Step 5: Solve for x
    x = 305,805,887.50/20,021.47
  6. Step 6: Final answer
    x = 15,273.90

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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.