Home / 27,376.86-37,779.84-15,439.62

Finding the Fourth Proportional to 27,376.86, 37,779.84 and 15,439.62

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Solution

The fourth proportional to 27,376.86, 37,779.84 and 15,439.62 is: 21,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,376.86 : 37,779.84 = 15,439.62 : x
  2. Step 2: Convert to fraction form
    27,376.86/37,779.84 = 15,439.62/x
  3. Step 3: Cross multiply
    27,376.86x = 37,779.84 × 15,439.62
  4. Step 4: Simplify right side
    27,376.86x = 583,306,373.26
  5. Step 5: Solve for x
    x = 583,306,373.26/27,376.86
  6. Step 6: Final answer
    x = 21,306.55

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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.