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Finding the Fourth Proportional to 30,468.80, 45,703.20 and 9,694.40

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Solution

The fourth proportional to 30,468.80, 45,703.20 and 9,694.40 is: 14,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468.80 : 45,703.20 = 9,694.40 : x
  2. Step 2: Convert to fraction form
    30,468.80/45,703.20 = 9,694.40/x
  3. Step 3: Cross multiply
    30,468.80x = 45,703.20 × 9,694.40
  4. Step 4: Simplify right side
    30,468.80x = 443,065,102.08
  5. Step 5: Solve for x
    x = 443,065,102.08/30,468.80
  6. Step 6: Final answer
    x = 14,541.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.