Home / 27,579.12-38,063.10-15,645.42

Finding the Fourth Proportional to 27,579.12, 38,063.10 and 15,645.42

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Solution

The fourth proportional to 27,579.12, 38,063.10 and 15,645.42 is: 21,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.12 : 38,063.10 = 15,645.42 : x
  2. Step 2: Convert to fraction form
    27,579.12/38,063.10 = 15,645.42/x
  3. Step 3: Cross multiply
    27,579.12x = 38,063.10 × 15,645.42
  4. Step 4: Simplify right side
    27,579.12x = 595,513,186.00
  5. Step 5: Solve for x
    x = 595,513,186.00/27,579.12
  6. Step 6: Final answer
    x = 21,592.90

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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.