Home / 20,042.04-30,063.06-12,657.72

Finding the Fourth Proportional to 20,042.04, 30,063.06 and 12,657.72

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Solution

The fourth proportional to 20,042.04, 30,063.06 and 12,657.72 is: 18,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.04 : 30,063.06 = 12,657.72 : x
  2. Step 2: Convert to fraction form
    20,042.04/30,063.06 = 12,657.72/x
  3. Step 3: Cross multiply
    20,042.04x = 30,063.06 × 12,657.72
  4. Step 4: Simplify right side
    20,042.04x = 380,529,795.82
  5. Step 5: Solve for x
    x = 380,529,795.82/20,042.04
  6. Step 6: Final answer
    x = 18,986.58

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Similar ratio
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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.