Home / 19,873.40-29,810.12-5,081.81

Finding the Fourth Proportional to 19,873.40, 29,810.12 and 5,081.81

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Solution

The fourth proportional to 19,873.40, 29,810.12 and 5,081.81 is: 7,622.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.40 : 29,810.12 = 5,081.81 : x
  2. Step 2: Convert to fraction form
    19,873.40/29,810.12 = 5,081.81/x
  3. Step 3: Cross multiply
    19,873.40x = 29,810.12 × 5,081.81
  4. Step 4: Simplify right side
    19,873.40x = 151,489,191.46
  5. Step 5: Solve for x
    x = 151,489,191.46/19,873.40
  6. Step 6: Final answer
    x = 7,622.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.