Home / 20,734.50-28,617.36-12,236.10

Finding the Fourth Proportional to 20,734.50, 28,617.36 and 12,236.10

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Solution

The fourth proportional to 20,734.50, 28,617.36 and 12,236.10 is: 16,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.50 : 28,617.36 = 12,236.10 : x
  2. Step 2: Convert to fraction form
    20,734.50/28,617.36 = 12,236.10/x
  3. Step 3: Cross multiply
    20,734.50x = 28,617.36 × 12,236.10
  4. Step 4: Simplify right side
    20,734.50x = 350,164,878.70
  5. Step 5: Solve for x
    x = 350,164,878.70/20,734.50
  6. Step 6: Final answer
    x = 16,888.03

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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.