Home / 30,121.47-41,565.74-16,691.94

Finding the Fourth Proportional to 30,121.47, 41,565.74 and 16,691.94

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Solution

The fourth proportional to 30,121.47, 41,565.74 and 16,691.94 is: 23,033.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.47 : 41,565.74 = 16,691.94 : x
  2. Step 2: Convert to fraction form
    30,121.47/41,565.74 = 16,691.94/x
  3. Step 3: Cross multiply
    30,121.47x = 41,565.74 × 16,691.94
  4. Step 4: Simplify right side
    30,121.47x = 693,812,838.14
  5. Step 5: Solve for x
    x = 693,812,838.14/30,121.47
  6. Step 6: Final answer
    x = 23,033.83

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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.