Home / 20,714.70-31,068.85-11,359.34

Finding the Fourth Proportional to 20,714.70, 31,068.85 and 11,359.34

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Solution

The fourth proportional to 20,714.70, 31,068.85 and 11,359.34 is: 17,037.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.70 : 31,068.85 = 11,359.34 : x
  2. Step 2: Convert to fraction form
    20,714.70/31,068.85 = 11,359.34/x
  3. Step 3: Cross multiply
    20,714.70x = 31,068.85 × 11,359.34
  4. Step 4: Simplify right side
    20,714.70x = 352,921,584.62
  5. Step 5: Solve for x
    x = 352,921,584.62/20,714.70
  6. Step 6: Final answer
    x = 17,037.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.