Home / 27,906.50-38,513.40-15,333.68

Finding the Fourth Proportional to 27,906.50, 38,513.40 and 15,333.68

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Solution

The fourth proportional to 27,906.50, 38,513.40 and 15,333.68 is: 21,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.50 : 38,513.40 = 15,333.68 : x
  2. Step 2: Convert to fraction form
    27,906.50/38,513.40 = 15,333.68/x
  3. Step 3: Cross multiply
    27,906.50x = 38,513.40 × 15,333.68
  4. Step 4: Simplify right side
    27,906.50x = 590,552,151.31
  5. Step 5: Solve for x
    x = 590,552,151.31/27,906.50
  6. Step 6: Final answer
    x = 21,161.81

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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.