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Finding the Fourth Proportional to 20,600.52, 30,890.70 and 14,363.52

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Solution

The fourth proportional to 20,600.52, 30,890.70 and 14,363.52 is: 21,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.52 : 30,890.70 = 14,363.52 : x
  2. Step 2: Convert to fraction form
    20,600.52/30,890.70 = 14,363.52/x
  3. Step 3: Cross multiply
    20,600.52x = 30,890.70 × 14,363.52
  4. Step 4: Simplify right side
    20,600.52x = 443,699,187.26
  5. Step 5: Solve for x
    x = 443,699,187.26/20,600.52
  6. Step 6: Final answer
    x = 21,538.25

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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.