Home / 27,829.62-38,405.34-15,083.21

Finding the Fourth Proportional to 27,829.62, 38,405.34 and 15,083.21

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Solution

The fourth proportional to 27,829.62, 38,405.34 and 15,083.21 is: 20,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,829.62 : 38,405.34 = 15,083.21 : x
  2. Step 2: Convert to fraction form
    27,829.62/38,405.34 = 15,083.21/x
  3. Step 3: Cross multiply
    27,829.62x = 38,405.34 × 15,083.21
  4. Step 4: Simplify right side
    27,829.62x = 579,275,808.34
  5. Step 5: Solve for x
    x = 579,275,808.34/27,829.62
  6. Step 6: Final answer
    x = 20,815.08

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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.