Home / 20,444.50-30,671.10-8,132.50

Finding the Fourth Proportional to 20,444.50, 30,671.10 and 8,132.50

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Solution

The fourth proportional to 20,444.50, 30,671.10 and 8,132.50 is: 12,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.50 : 30,671.10 = 8,132.50 : x
  2. Step 2: Convert to fraction form
    20,444.50/30,671.10 = 8,132.50/x
  3. Step 3: Cross multiply
    20,444.50x = 30,671.10 × 8,132.50
  4. Step 4: Simplify right side
    20,444.50x = 249,432,720.75
  5. Step 5: Solve for x
    x = 249,432,720.75/20,444.50
  6. Step 6: Final answer
    x = 12,200.48

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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.