Home / 20,218.97-27,901.99-11,266.31

Finding the Fourth Proportional to 20,218.97, 27,901.99 and 11,266.31

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Solution

The fourth proportional to 20,218.97, 27,901.99 and 11,266.31 is: 15,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218.97 : 27,901.99 = 11,266.31 : x
  2. Step 2: Convert to fraction form
    20,218.97/27,901.99 = 11,266.31/x
  3. Step 3: Cross multiply
    20,218.97x = 27,901.99 × 11,266.31
  4. Step 4: Simplify right side
    20,218.97x = 314,352,468.96
  5. Step 5: Solve for x
    x = 314,352,468.96/20,218.97
  6. Step 6: Final answer
    x = 15,547.40

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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.