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Finding the Fourth Proportional to 30,114.20, 45,169.48 and 7,927.09

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Solution

The fourth proportional to 30,114.20, 45,169.48 and 7,927.09 is: 11,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,114.20 : 45,169.48 = 7,927.09 : x
  2. Step 2: Convert to fraction form
    30,114.20/45,169.48 = 7,927.09/x
  3. Step 3: Cross multiply
    30,114.20x = 45,169.48 × 7,927.09
  4. Step 4: Simplify right side
    30,114.20x = 358,062,533.21
  5. Step 5: Solve for x
    x = 358,062,533.21/30,114.20
  6. Step 6: Final answer
    x = 11,890.16

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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.