Home / 27,992.36-38,637.40-18,439.22

Finding the Fourth Proportional to 27,992.36, 38,637.40 and 18,439.22

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Solution

The fourth proportional to 27,992.36, 38,637.40 and 18,439.22 is: 25,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.36 : 38,637.40 = 18,439.22 : x
  2. Step 2: Convert to fraction form
    27,992.36/38,637.40 = 18,439.22/x
  3. Step 3: Cross multiply
    27,992.36x = 38,637.40 × 18,439.22
  4. Step 4: Simplify right side
    27,992.36x = 712,443,279.54
  5. Step 5: Solve for x
    x = 712,443,279.54/27,992.36
  6. Step 6: Final answer
    x = 25,451.35

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Half 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.