Home / 27,918.50-41,887.46-13,138.70

Finding the Fourth Proportional to 27,918.50, 41,887.46 and 13,138.70

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Solution

The fourth proportional to 27,918.50, 41,887.46 and 13,138.70 is: 19,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.50 : 41,887.46 = 13,138.70 : x
  2. Step 2: Convert to fraction form
    27,918.50/41,887.46 = 13,138.70/x
  3. Step 3: Cross multiply
    27,918.50x = 41,887.46 × 13,138.70
  4. Step 4: Simplify right side
    27,918.50x = 550,346,594.11
  5. Step 5: Solve for x
    x = 550,346,594.11/27,918.50
  6. Step 6: Final answer
    x = 19,712.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.