Home / 27,383.21-37,788.15-15,445.61

Finding the Fourth Proportional to 27,383.21, 37,788.15 and 15,445.61

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Solution

The fourth proportional to 27,383.21, 37,788.15 and 15,445.61 is: 21,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,383.21 : 37,788.15 = 15,445.61 : x
  2. Step 2: Convert to fraction form
    27,383.21/37,788.15 = 15,445.61/x
  3. Step 3: Cross multiply
    27,383.21x = 37,788.15 × 15,445.61
  4. Step 4: Simplify right side
    27,383.21x = 583,661,027.52
  5. Step 5: Solve for x
    x = 583,661,027.52/27,383.21
  6. Step 6: Final answer
    x = 21,314.56

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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.