Home / 20,691.45-31,042.01-5,900.58

Finding the Fourth Proportional to 20,691.45, 31,042.01 and 5,900.58

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Solution

The fourth proportional to 20,691.45, 31,042.01 and 5,900.58 is: 8,852.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.45 : 31,042.01 = 5,900.58 : x
  2. Step 2: Convert to fraction form
    20,691.45/31,042.01 = 5,900.58/x
  3. Step 3: Cross multiply
    20,691.45x = 31,042.01 × 5,900.58
  4. Step 4: Simplify right side
    20,691.45x = 183,165,863.37
  5. Step 5: Solve for x
    x = 183,165,863.37/20,691.45
  6. Step 6: Final answer
    x = 8,852.25

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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.