Home / 30,853.98-42,578.19-16,706.58

Finding the Fourth Proportional to 30,853.98, 42,578.19 and 16,706.58

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Solution

The fourth proportional to 30,853.98, 42,578.19 and 16,706.58 is: 23,054.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,853.98 : 42,578.19 = 16,706.58 : x
  2. Step 2: Convert to fraction form
    30,853.98/42,578.19 = 16,706.58/x
  3. Step 3: Cross multiply
    30,853.98x = 42,578.19 × 16,706.58
  4. Step 4: Simplify right side
    30,853.98x = 711,335,937.49
  5. Step 5: Solve for x
    x = 711,335,937.49/30,853.98
  6. Step 6: Final answer
    x = 23,054.92

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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.