Home / 20,077.46-27,706.15-11,579.93

Finding the Fourth Proportional to 20,077.46, 27,706.15 and 11,579.93

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Solution

The fourth proportional to 20,077.46, 27,706.15 and 11,579.93 is: 15,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.46 : 27,706.15 = 11,579.93 : x
  2. Step 2: Convert to fraction form
    20,077.46/27,706.15 = 11,579.93/x
  3. Step 3: Cross multiply
    20,077.46x = 27,706.15 × 11,579.93
  4. Step 4: Simplify right side
    20,077.46x = 320,835,219.67
  5. Step 5: Solve for x
    x = 320,835,219.67/20,077.46
  6. Step 6: Final answer
    x = 15,979.87

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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.