Home / 27,847.11-38,425.47-15,911.22

Finding the Fourth Proportional to 27,847.11, 38,425.47 and 15,911.22

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Solution

The fourth proportional to 27,847.11, 38,425.47 and 15,911.22 is: 21,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.11 : 38,425.47 = 15,911.22 : x
  2. Step 2: Convert to fraction form
    27,847.11/38,425.47 = 15,911.22/x
  3. Step 3: Cross multiply
    27,847.11x = 38,425.47 × 15,911.22
  4. Step 4: Simplify right side
    27,847.11x = 611,395,835.09
  5. Step 5: Solve for x
    x = 611,395,835.09/27,847.11
  6. Step 6: Final answer
    x = 21,955.45

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Half scale
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Double scale
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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.