Home / 30,212.10-41,727.60-20,123.94

Finding the Fourth Proportional to 30,212.10, 41,727.60 and 20,123.94

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Solution

The fourth proportional to 30,212.10, 41,727.60 and 20,123.94 is: 27,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.10 : 41,727.60 = 20,123.94 : x
  2. Step 2: Convert to fraction form
    30,212.10/41,727.60 = 20,123.94/x
  3. Step 3: Cross multiply
    30,212.10x = 41,727.60 × 20,123.94
  4. Step 4: Simplify right side
    30,212.10x = 839,723,718.74
  5. Step 5: Solve for x
    x = 839,723,718.74/30,212.10
  6. Step 6: Final answer
    x = 27,794.29

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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.