Home / 27,743.88-38,282.09-15,807.45

Finding the Fourth Proportional to 27,743.88, 38,282.09 and 15,807.45

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Solution

The fourth proportional to 27,743.88, 38,282.09 and 15,807.45 is: 21,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,743.88 : 38,282.09 = 15,807.45 : x
  2. Step 2: Convert to fraction form
    27,743.88/38,282.09 = 15,807.45/x
  3. Step 3: Cross multiply
    27,743.88x = 38,282.09 × 15,807.45
  4. Step 4: Simplify right side
    27,743.88x = 605,142,144.53
  5. Step 5: Solve for x
    x = 605,142,144.53/27,743.88
  6. Step 6: Final answer
    x = 21,811.73

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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.