Home / 20,068.70-27,695.79-12,110.78

Finding the Fourth Proportional to 20,068.70, 27,695.79 and 12,110.78

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Solution

The fourth proportional to 20,068.70, 27,695.79 and 12,110.78 is: 16,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.70 : 27,695.79 = 12,110.78 : x
  2. Step 2: Convert to fraction form
    20,068.70/27,695.79 = 12,110.78/x
  3. Step 3: Cross multiply
    20,068.70x = 27,695.79 × 12,110.78
  4. Step 4: Simplify right side
    20,068.70x = 335,417,688.86
  5. Step 5: Solve for x
    x = 335,417,688.86/20,068.70
  6. Step 6: Final answer
    x = 16,713.48

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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.