Home / 27,376.22-37,779-15,439.66

Finding the Fourth Proportional to 27,376.22, 37,779 and 15,439.66

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Solution

The fourth proportional to 27,376.22, 37,779 and 15,439.66 is: 21,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,376.22 : 37,779 = 15,439.66 : x
  2. Step 2: Convert to fraction form
    27,376.22/37,779 = 15,439.66/x
  3. Step 3: Cross multiply
    27,376.22x = 37,779 × 15,439.66
  4. Step 4: Simplify right side
    27,376.22x = 583,294,915.14
  5. Step 5: Solve for x
    x = 583,294,915.14/27,376.22
  6. Step 6: Final answer
    x = 21,306.63

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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.