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Finding the Fourth Proportional to 30,630.60, 45,946.08 and 10,909.92

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Solution

The fourth proportional to 30,630.60, 45,946.08 and 10,909.92 is: 16,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,630.60 : 45,946.08 = 10,909.92 : x
  2. Step 2: Convert to fraction form
    30,630.60/45,946.08 = 10,909.92/x
  3. Step 3: Cross multiply
    30,630.60x = 45,946.08 × 10,909.92
  4. Step 4: Simplify right side
    30,630.60x = 501,268,057.11
  5. Step 5: Solve for x
    x = 501,268,057.11/30,630.60
  6. Step 6: Final answer
    x = 16,364.94

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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.