Home / 27,725.28-38,260.44-15,149.76

Finding the Fourth Proportional to 27,725.28, 38,260.44 and 15,149.76

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Solution

The fourth proportional to 27,725.28, 38,260.44 and 15,149.76 is: 20,906.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,725.28 : 38,260.44 = 15,149.76 : x
  2. Step 2: Convert to fraction form
    27,725.28/38,260.44 = 15,149.76/x
  3. Step 3: Cross multiply
    27,725.28x = 38,260.44 × 15,149.76
  4. Step 4: Simplify right side
    27,725.28x = 579,636,483.49
  5. Step 5: Solve for x
    x = 579,636,483.49/27,725.28
  6. Step 6: Final answer
    x = 20,906.42

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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.