Home / 27,558.54-38,031.21-15,620.94

Finding the Fourth Proportional to 27,558.54, 38,031.21 and 15,620.94

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Solution

The fourth proportional to 27,558.54, 38,031.21 and 15,620.94 is: 21,557.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,558.54 : 38,031.21 = 15,620.94 : x
  2. Step 2: Convert to fraction form
    27,558.54/38,031.21 = 15,620.94/x
  3. Step 3: Cross multiply
    27,558.54x = 38,031.21 × 15,620.94
  4. Step 4: Simplify right side
    27,558.54x = 594,083,249.54
  5. Step 5: Solve for x
    x = 594,083,249.54/27,558.54
  6. Step 6: Final answer
    x = 21,557.14

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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.