Home / 19,920.15-29,873.34-8,834.59

Finding the Fourth Proportional to 19,920.15, 29,873.34 and 8,834.59

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Solution

The fourth proportional to 19,920.15, 29,873.34 and 8,834.59 is: 13,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,920.15 : 29,873.34 = 8,834.59 : x
  2. Step 2: Convert to fraction form
    19,920.15/29,873.34 = 8,834.59/x
  3. Step 3: Cross multiply
    19,920.15x = 29,873.34 × 8,834.59
  4. Step 4: Simplify right side
    19,920.15x = 263,918,748.17
  5. Step 5: Solve for x
    x = 263,918,748.17/19,920.15
  6. Step 6: Final answer
    x = 13,248.83

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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.