Home / 20,637.59-28,475.15-11,683.85

Finding the Fourth Proportional to 20,637.59, 28,475.15 and 11,683.85

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Solution

The fourth proportional to 20,637.59, 28,475.15 and 11,683.85 is: 16,121.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.59 : 28,475.15 = 11,683.85 : x
  2. Step 2: Convert to fraction form
    20,637.59/28,475.15 = 11,683.85/x
  3. Step 3: Cross multiply
    20,637.59x = 28,475.15 × 11,683.85
  4. Step 4: Simplify right side
    20,637.59x = 332,699,180.53
  5. Step 5: Solve for x
    x = 332,699,180.53/20,637.59
  6. Step 6: Final answer
    x = 16,121.03

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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.