Home / 27,039.12-37,305.72-21,374.88

Finding the Fourth Proportional to 27,039.12, 37,305.72 and 21,374.88

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Solution

The fourth proportional to 27,039.12, 37,305.72 and 21,374.88 is: 29,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,039.12 : 37,305.72 = 21,374.88 : x
  2. Step 2: Convert to fraction form
    27,039.12/37,305.72 = 21,374.88/x
  3. Step 3: Cross multiply
    27,039.12x = 37,305.72 × 21,374.88
  4. Step 4: Simplify right side
    27,039.12x = 797,405,288.31
  5. Step 5: Solve for x
    x = 797,405,288.31/27,039.12
  6. Step 6: Final answer
    x = 29,490.80

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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.