Home / 27,740.28-38,272.23-15,795.16

Finding the Fourth Proportional to 27,740.28, 38,272.23 and 15,795.16

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Solution

The fourth proportional to 27,740.28, 38,272.23 and 15,795.16 is: 21,791.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,740.28 : 38,272.23 = 15,795.16 : x
  2. Step 2: Convert to fraction form
    27,740.28/38,272.23 = 15,795.16/x
  3. Step 3: Cross multiply
    27,740.28x = 38,272.23 × 15,795.16
  4. Step 4: Simplify right side
    27,740.28x = 604,515,996.41
  5. Step 5: Solve for x
    x = 604,515,996.41/27,740.28
  6. Step 6: Final answer
    x = 21,791.99

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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.