Home / 19,020.60-28,489.14-12,333.60

Finding the Fourth Proportional to 19,020.60, 28,489.14 and 12,333.60

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Solution

The fourth proportional to 19,020.60, 28,489.14 and 12,333.60 is: 18,473.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.60 : 28,489.14 = 12,333.60 : x
  2. Step 2: Convert to fraction form
    19,020.60/28,489.14 = 12,333.60/x
  3. Step 3: Cross multiply
    19,020.60x = 28,489.14 × 12,333.60
  4. Step 4: Simplify right side
    19,020.60x = 351,373,657.10
  5. Step 5: Solve for x
    x = 351,373,657.10/19,020.60
  6. Step 6: Final answer
    x = 18,473.32

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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.