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Finding the Fourth Proportional to 30,244.40, 45,355.80 and 10,523.60

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Solution

The fourth proportional to 30,244.40, 45,355.80 and 10,523.60 is: 15,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,244.40 : 45,355.80 = 10,523.60 : x
  2. Step 2: Convert to fraction form
    30,244.40/45,355.80 = 10,523.60/x
  3. Step 3: Cross multiply
    30,244.40x = 45,355.80 × 10,523.60
  4. Step 4: Simplify right side
    30,244.40x = 477,306,296.88
  5. Step 5: Solve for x
    x = 477,306,296.88/30,244.40
  6. Step 6: Final answer
    x = 15,781.64

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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.