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Finding the Fourth Proportional to 20,549.87, 30,800.01 and 10,004.08

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Solution

The fourth proportional to 20,549.87, 30,800.01 and 10,004.08 is: 14,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.87 : 30,800.01 = 10,004.08 : x
  2. Step 2: Convert to fraction form
    20,549.87/30,800.01 = 10,004.08/x
  3. Step 3: Cross multiply
    20,549.87x = 30,800.01 × 10,004.08
  4. Step 4: Simplify right side
    20,549.87x = 308,125,764.04
  5. Step 5: Solve for x
    x = 308,125,764.04/20,549.87
  6. Step 6: Final answer
    x = 14,994.05

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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.