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Finding the Fourth Proportional to 18,269.20, 27,346.20 and 14,352.40

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Solution

The fourth proportional to 18,269.20, 27,346.20 and 14,352.40 is: 21,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.20 : 27,346.20 = 14,352.40 : x
  2. Step 2: Convert to fraction form
    18,269.20/27,346.20 = 14,352.40/x
  3. Step 3: Cross multiply
    18,269.20x = 27,346.20 × 14,352.40
  4. Step 4: Simplify right side
    18,269.20x = 392,483,600.88
  5. Step 5: Solve for x
    x = 392,483,600.88/18,269.20
  6. Step 6: Final answer
    x = 21,483.35

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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.