Home / 19,920.33-29,873.61-8,834.79

Finding the Fourth Proportional to 19,920.33, 29,873.61 and 8,834.79

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Solution

The fourth proportional to 19,920.33, 29,873.61 and 8,834.79 is: 13,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.33 : 29,873.61 = 8,834.79 : x
  2. Step 2: Convert to fraction form
    19,920.33/29,873.61 = 8,834.79/x
  3. Step 3: Cross multiply
    19,920.33x = 29,873.61 × 8,834.79
  4. Step 4: Simplify right side
    19,920.33x = 263,927,070.89
  5. Step 5: Solve for x
    x = 263,927,070.89/19,920.33
  6. Step 6: Final answer
    x = 13,249.13

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1.5x scale

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.