Home / 27,951.40-38,572.32-16,021.78

Finding the Fourth Proportional to 27,951.40, 38,572.32 and 16,021.78

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Solution

The fourth proportional to 27,951.40, 38,572.32 and 16,021.78 is: 22,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.40 : 38,572.32 = 16,021.78 : x
  2. Step 2: Convert to fraction form
    27,951.40/38,572.32 = 16,021.78/x
  3. Step 3: Cross multiply
    27,951.40x = 38,572.32 × 16,021.78
  4. Step 4: Simplify right side
    27,951.40x = 617,997,225.13
  5. Step 5: Solve for x
    x = 617,997,225.13/27,951.40
  6. Step 6: Final answer
    x = 22,109.71

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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.