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Finding the Fourth Proportional to 30,140.00, 45,213.03 and 7,954.91

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Solution

The fourth proportional to 30,140.00, 45,213.03 and 7,954.91 is: 11,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.00 : 45,213.03 = 7,954.91 : x
  2. Step 2: Convert to fraction form
    30,140.00/45,213.03 = 7,954.91/x
  3. Step 3: Cross multiply
    30,140.00x = 45,213.03 × 7,954.91
  4. Step 4: Simplify right side
    30,140.00x = 359,665,358.41
  5. Step 5: Solve for x
    x = 359,665,358.41/30,140.00
  6. Step 6: Final answer
    x = 11,933.16

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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.