Home / 27,778.36-38,333.15-15,845.51

Finding the Fourth Proportional to 27,778.36, 38,333.15 and 15,845.51

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Solution

The fourth proportional to 27,778.36, 38,333.15 and 15,845.51 is: 21,866.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.36 : 38,333.15 = 15,845.51 : x
  2. Step 2: Convert to fraction form
    27,778.36/38,333.15 = 15,845.51/x
  3. Step 3: Cross multiply
    27,778.36x = 38,333.15 × 15,845.51
  4. Step 4: Simplify right side
    27,778.36x = 607,408,119.99
  5. Step 5: Solve for x
    x = 607,408,119.99/27,778.36
  6. Step 6: Final answer
    x = 21,866.24

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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.