Home / 16,279.70-22,425.77-13,881.87

Finding the Fourth Proportional to 16,279.70, 22,425.77 and 13,881.87

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Solution

The fourth proportional to 16,279.70, 22,425.77 and 13,881.87 is: 19,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,279.70 : 22,425.77 = 13,881.87 : x
  2. Step 2: Convert to fraction form
    16,279.70/22,425.77 = 13,881.87/x
  3. Step 3: Cross multiply
    16,279.70x = 22,425.77 × 13,881.87
  4. Step 4: Simplify right side
    16,279.70x = 311,311,623.79
  5. Step 5: Solve for x
    x = 311,311,623.79/16,279.70
  6. Step 6: Final answer
    x = 19,122.69

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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.