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Finding the Fourth Proportional to 30,510.28, 45,769.65 and 9,451.99

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Solution

The fourth proportional to 30,510.28, 45,769.65 and 9,451.99 is: 14,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,510.28 : 45,769.65 = 9,451.99 : x
  2. Step 2: Convert to fraction form
    30,510.28/45,769.65 = 9,451.99/x
  3. Step 3: Cross multiply
    30,510.28x = 45,769.65 × 9,451.99
  4. Step 4: Simplify right side
    30,510.28x = 432,614,274.10
  5. Step 5: Solve for x
    x = 432,614,274.10/30,510.28
  6. Step 6: Final answer
    x = 14,179.30

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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.