Home / 30,209.76-41,672.69-28,071.54

Finding the Fourth Proportional to 30,209.76, 41,672.69 and 28,071.54

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Solution

The fourth proportional to 30,209.76, 41,672.69 and 28,071.54 is: 38,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.76 : 41,672.69 = 28,071.54 : x
  2. Step 2: Convert to fraction form
    30,209.76/41,672.69 = 28,071.54/x
  3. Step 3: Cross multiply
    30,209.76x = 41,672.69 × 28,071.54
  4. Step 4: Simplify right side
    30,209.76x = 1,169,816,584.24
  5. Step 5: Solve for x
    x = 1,169,816,584.24/30,209.76
  6. Step 6: Final answer
    x = 38,723.13

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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.