Home / 27,380.09-37,784.48-15,443.39

Finding the Fourth Proportional to 27,380.09, 37,784.48 and 15,443.39

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Solution

The fourth proportional to 27,380.09, 37,784.48 and 15,443.39 is: 21,311.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,380.09 : 37,784.48 = 15,443.39 : x
  2. Step 2: Convert to fraction form
    27,380.09/37,784.48 = 15,443.39/x
  3. Step 3: Cross multiply
    27,380.09x = 37,784.48 × 15,443.39
  4. Step 4: Simplify right side
    27,380.09x = 583,520,477.83
  5. Step 5: Solve for x
    x = 583,520,477.83/27,380.09
  6. Step 6: Final answer
    x = 21,311.85

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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.