Home / 20,107.57-27,738.79-14,721.52

Finding the Fourth Proportional to 20,107.57, 27,738.79 and 14,721.52

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Solution

The fourth proportional to 20,107.57, 27,738.79 and 14,721.52 is: 20,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.57 : 27,738.79 = 14,721.52 : x
  2. Step 2: Convert to fraction form
    20,107.57/27,738.79 = 14,721.52/x
  3. Step 3: Cross multiply
    20,107.57x = 27,738.79 × 14,721.52
  4. Step 4: Simplify right side
    20,107.57x = 408,357,151.76
  5. Step 5: Solve for x
    x = 408,357,151.76/20,107.57
  6. Step 6: Final answer
    x = 20,308.63

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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.