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Finding the Fourth Proportional to 20,119.00, 30,178.70 and 6,079.14

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Solution

The fourth proportional to 20,119.00, 30,178.70 and 6,079.14 is: 9,118.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.00 : 30,178.70 = 6,079.14 : x
  2. Step 2: Convert to fraction form
    20,119.00/30,178.70 = 6,079.14/x
  3. Step 3: Cross multiply
    20,119.00x = 30,178.70 × 6,079.14
  4. Step 4: Simplify right side
    20,119.00x = 183,460,509.38
  5. Step 5: Solve for x
    x = 183,460,509.38/20,119.00
  6. Step 6: Final answer
    x = 9,118.77

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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.