Home / 27,853.24-38,439.58-15,917.08

Finding the Fourth Proportional to 27,853.24, 38,439.58 and 15,917.08

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Solution

The fourth proportional to 27,853.24, 38,439.58 and 15,917.08 is: 21,966.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,853.24 : 38,439.58 = 15,917.08 : x
  2. Step 2: Convert to fraction form
    27,853.24/38,439.58 = 15,917.08/x
  3. Step 3: Cross multiply
    27,853.24x = 38,439.58 × 15,917.08
  4. Step 4: Simplify right side
    27,853.24x = 611,845,870.03
  5. Step 5: Solve for x
    x = 611,845,870.03/27,853.24
  6. Step 6: Final answer
    x = 21,966.78

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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.