Home / 27,866.08-38,455.12-15,290.88

Finding the Fourth Proportional to 27,866.08, 38,455.12 and 15,290.88

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Solution

The fourth proportional to 27,866.08, 38,455.12 and 15,290.88 is: 21,101.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.08 : 38,455.12 = 15,290.88 : x
  2. Step 2: Convert to fraction form
    27,866.08/38,455.12 = 15,290.88/x
  3. Step 3: Cross multiply
    27,866.08x = 38,455.12 × 15,290.88
  4. Step 4: Simplify right side
    27,866.08x = 588,012,625.31
  5. Step 5: Solve for x
    x = 588,012,625.31/27,866.08
  6. Step 6: Final answer
    x = 21,101.38

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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.