Home / 20,439.49-30,671-8,592.25

Finding the Fourth Proportional to 20,439.49, 30,671 and 8,592.25

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Solution

The fourth proportional to 20,439.49, 30,671 and 8,592.25 is: 12,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439.49 : 30,671 = 8,592.25 : x
  2. Step 2: Convert to fraction form
    20,439.49/30,671 = 8,592.25/x
  3. Step 3: Cross multiply
    20,439.49x = 30,671 × 8,592.25
  4. Step 4: Simplify right side
    20,439.49x = 263,532,899.75
  5. Step 5: Solve for x
    x = 263,532,899.75/20,439.49
  6. Step 6: Final answer
    x = 12,893.32

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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.