Home / 22,621.83-31,205.30-14,223.75

Finding the Fourth Proportional to 22,621.83, 31,205.30 and 14,223.75

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Solution

The fourth proportional to 22,621.83, 31,205.30 and 14,223.75 is: 19,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.83 : 31,205.30 = 14,223.75 : x
  2. Step 2: Convert to fraction form
    22,621.83/31,205.30 = 14,223.75/x
  3. Step 3: Cross multiply
    22,621.83x = 31,205.30 × 14,223.75
  4. Step 4: Simplify right side
    22,621.83x = 443,856,314.76
  5. Step 5: Solve for x
    x = 443,856,314.76/22,621.83
  6. Step 6: Final answer
    x = 19,620.71

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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.