Home / 20,116.71-27,758.22-12,048.47

Finding the Fourth Proportional to 20,116.71, 27,758.22 and 12,048.47

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Solution

The fourth proportional to 20,116.71, 27,758.22 and 12,048.47 is: 16,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.71 : 27,758.22 = 12,048.47 : x
  2. Step 2: Convert to fraction form
    20,116.71/27,758.22 = 12,048.47/x
  3. Step 3: Cross multiply
    20,116.71x = 27,758.22 × 12,048.47
  4. Step 4: Simplify right side
    20,116.71x = 334,444,093.94
  5. Step 5: Solve for x
    x = 334,444,093.94/20,116.71
  6. Step 6: Final answer
    x = 16,625.19

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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.