Home / 20,624.98-28,460.88-12,127.44

Finding the Fourth Proportional to 20,624.98, 28,460.88 and 12,127.44

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Solution

The fourth proportional to 20,624.98, 28,460.88 and 12,127.44 is: 16,734.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.98 : 28,460.88 = 12,127.44 : x
  2. Step 2: Convert to fraction form
    20,624.98/28,460.88 = 12,127.44/x
  3. Step 3: Cross multiply
    20,624.98x = 28,460.88 × 12,127.44
  4. Step 4: Simplify right side
    20,624.98x = 345,157,614.55
  5. Step 5: Solve for x
    x = 345,157,614.55/20,624.98
  6. Step 6: Final answer
    x = 16,734.93

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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.