Home / 20,671.23-31,006.83-5,088.85

Finding the Fourth Proportional to 20,671.23, 31,006.83 and 5,088.85

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Solution

The fourth proportional to 20,671.23, 31,006.83 and 5,088.85 is: 7,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.23 : 31,006.83 = 5,088.85 : x
  2. Step 2: Convert to fraction form
    20,671.23/31,006.83 = 5,088.85/x
  3. Step 3: Cross multiply
    20,671.23x = 31,006.83 × 5,088.85
  4. Step 4: Simplify right side
    20,671.23x = 157,789,106.85
  5. Step 5: Solve for x
    x = 157,789,106.85/20,671.23
  6. Step 6: Final answer
    x = 7,633.27

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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.