Home / 22,619.19-31,218.21-12,550.86

Finding the Fourth Proportional to 22,619.19, 31,218.21 and 12,550.86

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Solution

The fourth proportional to 22,619.19, 31,218.21 and 12,550.86 is: 17,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.19 : 31,218.21 = 12,550.86 : x
  2. Step 2: Convert to fraction form
    22,619.19/31,218.21 = 12,550.86/x
  3. Step 3: Cross multiply
    22,619.19x = 31,218.21 × 12,550.86
  4. Step 4: Simplify right side
    22,619.19x = 391,815,429.83
  5. Step 5: Solve for x
    x = 391,815,429.83/22,619.19
  6. Step 6: Final answer
    x = 17,322.26

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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.