Home / 27,808.65-38,375.96-15,061.86

Finding the Fourth Proportional to 27,808.65, 38,375.96 and 15,061.86

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Solution

The fourth proportional to 27,808.65, 38,375.96 and 15,061.86 is: 20,785.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.65 : 38,375.96 = 15,061.86 : x
  2. Step 2: Convert to fraction form
    27,808.65/38,375.96 = 15,061.86/x
  3. Step 3: Cross multiply
    27,808.65x = 38,375.96 × 15,061.86
  4. Step 4: Simplify right side
    27,808.65x = 578,013,261.58
  5. Step 5: Solve for x
    x = 578,013,261.58/27,808.65
  6. Step 6: Final answer
    x = 20,785.38

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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.