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Finding the Fourth Proportional to 20,600.59, 30,900.88 and 9,503.99

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Solution

The fourth proportional to 20,600.59, 30,900.88 and 9,503.99 is: 14,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.59 : 30,900.88 = 9,503.99 : x
  2. Step 2: Convert to fraction form
    20,600.59/30,900.88 = 9,503.99/x
  3. Step 3: Cross multiply
    20,600.59x = 30,900.88 × 9,503.99
  4. Step 4: Simplify right side
    20,600.59x = 293,681,654.51
  5. Step 5: Solve for x
    x = 293,681,654.51/20,600.59
  6. Step 6: Final answer
    x = 14,255.98

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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.