Home / 27,788.36-38,347.94-15,213.11

Finding the Fourth Proportional to 27,788.36, 38,347.94 and 15,213.11

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Solution

The fourth proportional to 27,788.36, 38,347.94 and 15,213.11 is: 20,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.36 : 38,347.94 = 15,213.11 : x
  2. Step 2: Convert to fraction form
    27,788.36/38,347.94 = 15,213.11/x
  3. Step 3: Cross multiply
    27,788.36x = 38,347.94 × 15,213.11
  4. Step 4: Simplify right side
    27,788.36x = 583,391,429.49
  5. Step 5: Solve for x
    x = 583,391,429.49/27,788.36
  6. Step 6: Final answer
    x = 20,994.09

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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.