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Finding the Fourth Proportional to 30,384.60, 45,576.90 and 22,900.20

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Solution

The fourth proportional to 30,384.60, 45,576.90 and 22,900.20 is: 34,350.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384.60 : 45,576.90 = 22,900.20 : x
  2. Step 2: Convert to fraction form
    30,384.60/45,576.90 = 22,900.20/x
  3. Step 3: Cross multiply
    30,384.60x = 45,576.90 × 22,900.20
  4. Step 4: Simplify right side
    30,384.60x = 1,043,720,125.38
  5. Step 5: Solve for x
    x = 1,043,720,125.38/30,384.60
  6. Step 6: Final answer
    x = 34,350.30

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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.