Home / 19,781.62-27,298.68-10,829.70

Finding the Fourth Proportional to 19,781.62, 27,298.68 and 10,829.70

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Solution

The fourth proportional to 19,781.62, 27,298.68 and 10,829.70 is: 14,945.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.62 : 27,298.68 = 10,829.70 : x
  2. Step 2: Convert to fraction form
    19,781.62/27,298.68 = 10,829.70/x
  3. Step 3: Cross multiply
    19,781.62x = 27,298.68 × 10,829.70
  4. Step 4: Simplify right side
    19,781.62x = 295,636,514.80
  5. Step 5: Solve for x
    x = 295,636,514.80/19,781.62
  6. Step 6: Final answer
    x = 14,945.01

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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.