Home / 22,621.32-31,216.58-12,550.20

Finding the Fourth Proportional to 22,621.32, 31,216.58 and 12,550.20

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Solution

The fourth proportional to 22,621.32, 31,216.58 and 12,550.20 is: 17,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,621.32 : 31,216.58 = 12,550.20 : x
  2. Step 2: Convert to fraction form
    22,621.32/31,216.58 = 12,550.20/x
  3. Step 3: Cross multiply
    22,621.32x = 31,216.58 × 12,550.20
  4. Step 4: Simplify right side
    22,621.32x = 391,774,322.32
  5. Step 5: Solve for x
    x = 391,774,322.32/22,621.32
  6. Step 6: Final answer
    x = 17,318.81

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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.