Home / 27,385.29-37,788.39-15,449.13

Finding the Fourth Proportional to 27,385.29, 37,788.39 and 15,449.13

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Solution

The fourth proportional to 27,385.29, 37,788.39 and 15,449.13 is: 21,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,385.29 : 37,788.39 = 15,449.13 : x
  2. Step 2: Convert to fraction form
    27,385.29/37,788.39 = 15,449.13/x
  3. Step 3: Cross multiply
    27,385.29x = 37,788.39 × 15,449.13
  4. Step 4: Simplify right side
    27,385.29x = 583,797,749.60
  5. Step 5: Solve for x
    x = 583,797,749.60/27,385.29
  6. Step 6: Final answer
    x = 21,317.93

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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.