Home / 20,042.61-30,063.42-11,621.67

Finding the Fourth Proportional to 20,042.61, 30,063.42 and 11,621.67

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Solution

The fourth proportional to 20,042.61, 30,063.42 and 11,621.67 is: 17,432.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.61 : 30,063.42 = 11,621.67 : x
  2. Step 2: Convert to fraction form
    20,042.61/30,063.42 = 11,621.67/x
  3. Step 3: Cross multiply
    20,042.61x = 30,063.42 × 11,621.67
  4. Step 4: Simplify right side
    20,042.61x = 349,387,146.31
  5. Step 5: Solve for x
    x = 349,387,146.31/20,042.61
  6. Step 6: Final answer
    x = 17,432.22

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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.