Home / 20,095.64-27,732.07-11,143.98

Finding the Fourth Proportional to 20,095.64, 27,732.07 and 11,143.98

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Solution

The fourth proportional to 20,095.64, 27,732.07 and 11,143.98 is: 15,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.64 : 27,732.07 = 11,143.98 : x
  2. Step 2: Convert to fraction form
    20,095.64/27,732.07 = 11,143.98/x
  3. Step 3: Cross multiply
    20,095.64x = 27,732.07 × 11,143.98
  4. Step 4: Simplify right side
    20,095.64x = 309,045,647.37
  5. Step 5: Solve for x
    x = 309,045,647.37/20,095.64
  6. Step 6: Final answer
    x = 15,378.74

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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.