Home / 27,965.12-38,592.20-15,218.32

Finding the Fourth Proportional to 27,965.12, 38,592.20 and 15,218.32

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Solution

The fourth proportional to 27,965.12, 38,592.20 and 15,218.32 is: 21,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.12 : 38,592.20 = 15,218.32 : x
  2. Step 2: Convert to fraction form
    27,965.12/38,592.20 = 15,218.32/x
  3. Step 3: Cross multiply
    27,965.12x = 38,592.20 × 15,218.32
  4. Step 4: Simplify right side
    27,965.12x = 587,308,449.10
  5. Step 5: Solve for x
    x = 587,308,449.10/27,965.12
  6. Step 6: Final answer
    x = 21,001.46

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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.