Home / 20,294.35-28,014.83-12,339.12

Finding the Fourth Proportional to 20,294.35, 28,014.83 and 12,339.12

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Solution

The fourth proportional to 20,294.35, 28,014.83 and 12,339.12 is: 17,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.35 : 28,014.83 = 12,339.12 : x
  2. Step 2: Convert to fraction form
    20,294.35/28,014.83 = 12,339.12/x
  3. Step 3: Cross multiply
    20,294.35x = 28,014.83 × 12,339.12
  4. Step 4: Simplify right side
    20,294.35x = 345,678,349.15
  5. Step 5: Solve for x
    x = 345,678,349.15/20,294.35
  6. Step 6: Final answer
    x = 17,033.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.