Home / 27,422.85-37,839.45-15,485.95

Finding the Fourth Proportional to 27,422.85, 37,839.45 and 15,485.95

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Solution

The fourth proportional to 27,422.85, 37,839.45 and 15,485.95 is: 21,368.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,422.85 : 37,839.45 = 15,485.95 : x
  2. Step 2: Convert to fraction form
    27,422.85/37,839.45 = 15,485.95/x
  3. Step 3: Cross multiply
    27,422.85x = 37,839.45 × 15,485.95
  4. Step 4: Simplify right side
    27,422.85x = 585,979,830.73
  5. Step 5: Solve for x
    x = 585,979,830.73/27,422.85
  6. Step 6: Final answer
    x = 21,368.31

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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.