Home / 27,949.64-38,555.64-21,224.12

Finding the Fourth Proportional to 27,949.64, 38,555.64 and 21,224.12

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Solution

The fourth proportional to 27,949.64, 38,555.64 and 21,224.12 is: 29,278.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,949.64 : 38,555.64 = 21,224.12 : x
  2. Step 2: Convert to fraction form
    27,949.64/38,555.64 = 21,224.12/x
  3. Step 3: Cross multiply
    27,949.64x = 38,555.64 × 21,224.12
  4. Step 4: Simplify right side
    27,949.64x = 818,309,530.04
  5. Step 5: Solve for x
    x = 818,309,530.04/27,949.64
  6. Step 6: Final answer
    x = 29,278.00

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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.