Home / 27,749.94-38,293.29-15,811.62

Finding the Fourth Proportional to 27,749.94, 38,293.29 and 15,811.62

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Solution

The fourth proportional to 27,749.94, 38,293.29 and 15,811.62 is: 21,819.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,749.94 : 38,293.29 = 15,811.62 : x
  2. Step 2: Convert to fraction form
    27,749.94/38,293.29 = 15,811.62/x
  3. Step 3: Cross multiply
    27,749.94x = 38,293.29 × 15,811.62
  4. Step 4: Simplify right side
    27,749.94x = 605,478,950.03
  5. Step 5: Solve for x
    x = 605,478,950.03/27,749.94
  6. Step 6: Final answer
    x = 21,819.11

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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.