Home / 30,853.71-42,578.42-16,706.84

Finding the Fourth Proportional to 30,853.71, 42,578.42 and 16,706.84

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Solution

The fourth proportional to 30,853.71, 42,578.42 and 16,706.84 is: 23,055.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,853.71 : 42,578.42 = 16,706.84 : x
  2. Step 2: Convert to fraction form
    30,853.71/42,578.42 = 16,706.84/x
  3. Step 3: Cross multiply
    30,853.71x = 42,578.42 × 16,706.84
  4. Step 4: Simplify right side
    30,853.71x = 711,350,553.97
  5. Step 5: Solve for x
    x = 711,350,553.97/30,853.71
  6. Step 6: Final answer
    x = 23,055.59

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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.