Home / 27,911.43-38,518.21-15,164.86

Finding the Fourth Proportional to 27,911.43, 38,518.21 and 15,164.86

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Solution

The fourth proportional to 27,911.43, 38,518.21 and 15,164.86 is: 20,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.43 : 38,518.21 = 15,164.86 : x
  2. Step 2: Convert to fraction form
    27,911.43/38,518.21 = 15,164.86/x
  3. Step 3: Cross multiply
    27,911.43x = 38,518.21 × 15,164.86
  4. Step 4: Simplify right side
    27,911.43x = 584,123,262.10
  5. Step 5: Solve for x
    x = 584,123,262.10/27,911.43
  6. Step 6: Final answer
    x = 20,927.74

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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.