Home / 27,940.20-38,548.04-15,839.39

Finding the Fourth Proportional to 27,940.20, 38,548.04 and 15,839.39

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Solution

The fourth proportional to 27,940.20, 38,548.04 and 15,839.39 is: 21,853.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940.20 : 38,548.04 = 15,839.39 : x
  2. Step 2: Convert to fraction form
    27,940.20/38,548.04 = 15,839.39/x
  3. Step 3: Cross multiply
    27,940.20x = 38,548.04 × 15,839.39
  4. Step 4: Simplify right side
    27,940.20x = 610,577,226.76
  5. Step 5: Solve for x
    x = 610,577,226.76/27,940.20
  6. Step 6: Final answer
    x = 21,853.00

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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.