Home / 20,068.16-27,696.74-12,108.69

Finding the Fourth Proportional to 20,068.16, 27,696.74 and 12,108.69

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Solution

The fourth proportional to 20,068.16, 27,696.74 and 12,108.69 is: 16,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.16 : 27,696.74 = 12,108.69 : x
  2. Step 2: Convert to fraction form
    20,068.16/27,696.74 = 12,108.69/x
  3. Step 3: Cross multiply
    20,068.16x = 27,696.74 × 12,108.69
  4. Step 4: Simplify right side
    20,068.16x = 335,371,178.13
  5. Step 5: Solve for x
    x = 335,371,178.13/20,068.16
  6. Step 6: Final answer
    x = 16,711.61

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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.