Home / 20,714.79-31,043.22-11,206.59

Finding the Fourth Proportional to 20,714.79, 31,043.22 and 11,206.59

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Solution

The fourth proportional to 20,714.79, 31,043.22 and 11,206.59 is: 16,794.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.79 : 31,043.22 = 11,206.59 : x
  2. Step 2: Convert to fraction form
    20,714.79/31,043.22 = 11,206.59/x
  3. Step 3: Cross multiply
    20,714.79x = 31,043.22 × 11,206.59
  4. Step 4: Simplify right side
    20,714.79x = 347,888,638.82
  5. Step 5: Solve for x
    x = 347,888,638.82/20,714.79
  6. Step 6: Final answer
    x = 16,794.22

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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.