Home / 39,920.44-55,089.48-22,017.10

Finding the Fourth Proportional to 39,920.44, 55,089.48 and 22,017.10

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Solution

The fourth proportional to 39,920.44, 55,089.48 and 22,017.10 is: 30,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920.44 : 55,089.48 = 22,017.10 : x
  2. Step 2: Convert to fraction form
    39,920.44/55,089.48 = 22,017.10/x
  3. Step 3: Cross multiply
    39,920.44x = 55,089.48 × 22,017.10
  4. Step 4: Simplify right side
    39,920.44x = 1,212,910,590.11
  5. Step 5: Solve for x
    x = 1,212,910,590.11/39,920.44
  6. Step 6: Final answer
    x = 30,383.20

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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.