Home / 27,474.66-37,922.31-18,978.30

Finding the Fourth Proportional to 27,474.66, 37,922.31 and 18,978.30

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Solution

The fourth proportional to 27,474.66, 37,922.31 and 18,978.30 is: 26,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,474.66 : 37,922.31 = 18,978.30 : x
  2. Step 2: Convert to fraction form
    27,474.66/37,922.31 = 18,978.30/x
  3. Step 3: Cross multiply
    27,474.66x = 37,922.31 × 18,978.30
  4. Step 4: Simplify right side
    27,474.66x = 719,700,975.87
  5. Step 5: Solve for x
    x = 719,700,975.87/27,474.66
  6. Step 6: Final answer
    x = 26,195.08

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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.