Home / 27,287.66-37,602.42-19,720.64

Finding the Fourth Proportional to 27,287.66, 37,602.42 and 19,720.64

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Solution

The fourth proportional to 27,287.66, 37,602.42 and 19,720.64 is: 27,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,287.66 : 37,602.42 = 19,720.64 : x
  2. Step 2: Convert to fraction form
    27,287.66/37,602.42 = 19,720.64/x
  3. Step 3: Cross multiply
    27,287.66x = 37,602.42 × 19,720.64
  4. Step 4: Simplify right side
    27,287.66x = 741,543,787.95
  5. Step 5: Solve for x
    x = 741,543,787.95/27,287.66
  6. Step 6: Final answer
    x = 27,175.06

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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.