Home / 20,263.66-27,901.47-17,272.78

Finding the Fourth Proportional to 20,263.66, 27,901.47 and 17,272.78

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Solution

The fourth proportional to 20,263.66, 27,901.47 and 17,272.78 is: 23,783.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.66 : 27,901.47 = 17,272.78 : x
  2. Step 2: Convert to fraction form
    20,263.66/27,901.47 = 17,272.78/x
  3. Step 3: Cross multiply
    20,263.66x = 27,901.47 × 17,272.78
  4. Step 4: Simplify right side
    20,263.66x = 481,935,952.99
  5. Step 5: Solve for x
    x = 481,935,952.99/20,263.66
  6. Step 6: Final answer
    x = 23,783.26

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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.