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Finding the Fourth Proportional to 20,041.20, 30,061.08 and 6,190.20

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Solution

The fourth proportional to 20,041.20, 30,061.08 and 6,190.20 is: 9,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041.20 : 30,061.08 = 6,190.20 : x
  2. Step 2: Convert to fraction form
    20,041.20/30,061.08 = 6,190.20/x
  3. Step 3: Cross multiply
    20,041.20x = 30,061.08 × 6,190.20
  4. Step 4: Simplify right side
    20,041.20x = 186,084,097.42
  5. Step 5: Solve for x
    x = 186,084,097.42/20,041.20
  6. Step 6: Final answer
    x = 9,285.08

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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.