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Finding the Fourth Proportional to 30,224.60, 45,351.80 and 13,596.40

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Solution

The fourth proportional to 30,224.60, 45,351.80 and 13,596.40 is: 20,401.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,224.60 : 45,351.80 = 13,596.40 : x
  2. Step 2: Convert to fraction form
    30,224.60/45,351.80 = 13,596.40/x
  3. Step 3: Cross multiply
    30,224.60x = 45,351.80 × 13,596.40
  4. Step 4: Simplify right side
    30,224.60x = 616,621,213.52
  5. Step 5: Solve for x
    x = 616,621,213.52/30,224.60
  6. Step 6: Final answer
    x = 20,401.30

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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.