Home / 30,385.53-41,930.19-16,956.14

Finding the Fourth Proportional to 30,385.53, 41,930.19 and 16,956.14

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Solution

The fourth proportional to 30,385.53, 41,930.19 and 16,956.14 is: 23,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,385.53 : 41,930.19 = 16,956.14 : x
  2. Step 2: Convert to fraction form
    30,385.53/41,930.19 = 16,956.14/x
  3. Step 3: Cross multiply
    30,385.53x = 41,930.19 × 16,956.14
  4. Step 4: Simplify right side
    30,385.53x = 710,973,962.22
  5. Step 5: Solve for x
    x = 710,973,962.22/30,385.53
  6. Step 6: Final answer
    x = 23,398.44

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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.