Home / 27,788.35-38,347.92-15,213.10

Finding the Fourth Proportional to 27,788.35, 38,347.92 and 15,213.10

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Solution

The fourth proportional to 27,788.35, 38,347.92 and 15,213.10 is: 20,994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.35 : 38,347.92 = 15,213.10 : x
  2. Step 2: Convert to fraction form
    27,788.35/38,347.92 = 15,213.10/x
  3. Step 3: Cross multiply
    27,788.35x = 38,347.92 × 15,213.10
  4. Step 4: Simplify right side
    27,788.35x = 583,390,645.88
  5. Step 5: Solve for x
    x = 583,390,645.88/27,788.35
  6. Step 6: Final answer
    x = 20,994.07

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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.