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Finding the Fourth Proportional to 20,297.58, 30,452.54 and 14,385.90

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Solution

The fourth proportional to 20,297.58, 30,452.54 and 14,385.90 is: 21,583.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.58 : 30,452.54 = 14,385.90 : x
  2. Step 2: Convert to fraction form
    20,297.58/30,452.54 = 14,385.90/x
  3. Step 3: Cross multiply
    20,297.58x = 30,452.54 × 14,385.90
  4. Step 4: Simplify right side
    20,297.58x = 438,087,195.19
  5. Step 5: Solve for x
    x = 438,087,195.19/20,297.58
  6. Step 6: Final answer
    x = 21,583.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.