Home / 27,921.36-38,530.80-15,983.94

Finding the Fourth Proportional to 27,921.36, 38,530.80 and 15,983.94

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Solution

The fourth proportional to 27,921.36, 38,530.80 and 15,983.94 is: 22,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.36 : 38,530.80 = 15,983.94 : x
  2. Step 2: Convert to fraction form
    27,921.36/38,530.80 = 15,983.94/x
  3. Step 3: Cross multiply
    27,921.36x = 38,530.80 × 15,983.94
  4. Step 4: Simplify right side
    27,921.36x = 615,873,995.35
  5. Step 5: Solve for x
    x = 615,873,995.35/27,921.36
  6. Step 6: Final answer
    x = 22,057.45

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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.