Home / 27,811.65-38,380.10-15,064.86

Finding the Fourth Proportional to 27,811.65, 38,380.10 and 15,064.86

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Solution

The fourth proportional to 27,811.65, 38,380.10 and 15,064.86 is: 20,789.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.65 : 38,380.10 = 15,064.86 : x
  2. Step 2: Convert to fraction form
    27,811.65/38,380.10 = 15,064.86/x
  3. Step 3: Cross multiply
    27,811.65x = 38,380.10 × 15,064.86
  4. Step 4: Simplify right side
    27,811.65x = 578,190,757.96
  5. Step 5: Solve for x
    x = 578,190,757.96/27,811.65
  6. Step 6: Final answer
    x = 20,789.52

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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.