Home / 20,318.54-27,977.28-17,786.48

Finding the Fourth Proportional to 20,318.54, 27,977.28 and 17,786.48

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Solution

The fourth proportional to 20,318.54, 27,977.28 and 17,786.48 is: 24,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318.54 : 27,977.28 = 17,786.48 : x
  2. Step 2: Convert to fraction form
    20,318.54/27,977.28 = 17,786.48/x
  3. Step 3: Cross multiply
    20,318.54x = 27,977.28 × 17,786.48
  4. Step 4: Simplify right side
    20,318.54x = 497,617,331.17
  5. Step 5: Solve for x
    x = 497,617,331.17/20,318.54
  6. Step 6: Final answer
    x = 24,490.80

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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.