Home / 27,788.76-38,348.28-15,213.42

Finding the Fourth Proportional to 27,788.76, 38,348.28 and 15,213.42

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Solution

The fourth proportional to 27,788.76, 38,348.28 and 15,213.42 is: 20,994.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.76 : 38,348.28 = 15,213.42 : x
  2. Step 2: Convert to fraction form
    27,788.76/38,348.28 = 15,213.42/x
  3. Step 3: Cross multiply
    27,788.76x = 38,348.28 × 15,213.42
  4. Step 4: Simplify right side
    27,788.76x = 583,408,489.92
  5. Step 5: Solve for x
    x = 583,408,489.92/27,788.76
  6. Step 6: Final answer
    x = 20,994.41

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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.