Home / 31,226.03-43,106.00-19,910.74

Finding the Fourth Proportional to 31,226.03, 43,106.00 and 19,910.74

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Solution

The fourth proportional to 31,226.03, 43,106.00 and 19,910.74 is: 27,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,226.03 : 43,106.00 = 19,910.74 : x
  2. Step 2: Convert to fraction form
    31,226.03/43,106.00 = 19,910.74/x
  3. Step 3: Cross multiply
    31,226.03x = 43,106.00 × 19,910.74
  4. Step 4: Simplify right side
    31,226.03x = 858,272,166.71
  5. Step 5: Solve for x
    x = 858,272,166.71/31,226.03
  6. Step 6: Final answer
    x = 27,485.79

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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.