Home / 30,212.36-41,691.12-18,881.24

Finding the Fourth Proportional to 30,212.36, 41,691.12 and 18,881.24

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Solution

The fourth proportional to 30,212.36, 41,691.12 and 18,881.24 is: 26,054.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.36 : 41,691.12 = 18,881.24 : x
  2. Step 2: Convert to fraction form
    30,212.36/41,691.12 = 18,881.24/x
  3. Step 3: Cross multiply
    30,212.36x = 41,691.12 × 18,881.24
  4. Step 4: Simplify right side
    30,212.36x = 787,180,042.59
  5. Step 5: Solve for x
    x = 787,180,042.59/30,212.36
  6. Step 6: Final answer
    x = 26,054.90

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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.