Home / 20,210.69-27,890.78-11,714.46

Finding the Fourth Proportional to 20,210.69, 27,890.78 and 11,714.46

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Solution

The fourth proportional to 20,210.69, 27,890.78 and 11,714.46 is: 16,165.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.69 : 27,890.78 = 11,714.46 : x
  2. Step 2: Convert to fraction form
    20,210.69/27,890.78 = 11,714.46/x
  3. Step 3: Cross multiply
    20,210.69x = 27,890.78 × 11,714.46
  4. Step 4: Simplify right side
    20,210.69x = 326,725,426.68
  5. Step 5: Solve for x
    x = 326,725,426.68/20,210.69
  6. Step 6: Final answer
    x = 16,165.97

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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.