Home / 20,657.34-28,506.56-11,704.62

Finding the Fourth Proportional to 20,657.34, 28,506.56 and 11,704.62

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Solution

The fourth proportional to 20,657.34, 28,506.56 and 11,704.62 is: 16,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.34 : 28,506.56 = 11,704.62 : x
  2. Step 2: Convert to fraction form
    20,657.34/28,506.56 = 11,704.62/x
  3. Step 3: Cross multiply
    20,657.34x = 28,506.56 × 11,704.62
  4. Step 4: Simplify right side
    20,657.34x = 333,658,452.31
  5. Step 5: Solve for x
    x = 333,658,452.31/20,657.34
  6. Step 6: Final answer
    x = 16,152.05

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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.