Home / 27,788.72-38,348.44-15,213.47

Finding the Fourth Proportional to 27,788.72, 38,348.44 and 15,213.47

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Solution

The fourth proportional to 27,788.72, 38,348.44 and 15,213.47 is: 20,994.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.72 : 38,348.44 = 15,213.47 : x
  2. Step 2: Convert to fraction form
    27,788.72/38,348.44 = 15,213.47/x
  3. Step 3: Cross multiply
    27,788.72x = 38,348.44 × 15,213.47
  4. Step 4: Simplify right side
    27,788.72x = 583,412,841.49
  5. Step 5: Solve for x
    x = 583,412,841.49/27,788.72
  6. Step 6: Final answer
    x = 20,994.59

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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.