Home / 22,621.21-31,217.46-12,550.30

Finding the Fourth Proportional to 22,621.21, 31,217.46 and 12,550.30

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Solution

The fourth proportional to 22,621.21, 31,217.46 and 12,550.30 is: 17,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.21 : 31,217.46 = 12,550.30 : x
  2. Step 2: Convert to fraction form
    22,621.21/31,217.46 = 12,550.30/x
  3. Step 3: Cross multiply
    22,621.21x = 31,217.46 × 12,550.30
  4. Step 4: Simplify right side
    22,621.21x = 391,788,488.24
  5. Step 5: Solve for x
    x = 391,788,488.24/22,621.21
  6. Step 6: Final answer
    x = 17,319.52

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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.