Home / 27,921.36-38,533.62-15,988.44

Finding the Fourth Proportional to 27,921.36, 38,533.62 and 15,988.44

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Solution

The fourth proportional to 27,921.36, 38,533.62 and 15,988.44 is: 22,065.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.36 : 38,533.62 = 15,988.44 : x
  2. Step 2: Convert to fraction form
    27,921.36/38,533.62 = 15,988.44/x
  3. Step 3: Cross multiply
    27,921.36x = 38,533.62 × 15,988.44
  4. Step 4: Simplify right side
    27,921.36x = 616,092,471.35
  5. Step 5: Solve for x
    x = 616,092,471.35/27,921.36
  6. Step 6: Final answer
    x = 22,065.27

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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.