Home / 20,594.53-28,420.58-11,642.90

Finding the Fourth Proportional to 20,594.53, 28,420.58 and 11,642.90

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Solution

The fourth proportional to 20,594.53, 28,420.58 and 11,642.90 is: 16,067.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.53 : 28,420.58 = 11,642.90 : x
  2. Step 2: Convert to fraction form
    20,594.53/28,420.58 = 11,642.90/x
  3. Step 3: Cross multiply
    20,594.53x = 28,420.58 × 11,642.90
  4. Step 4: Simplify right side
    20,594.53x = 330,897,912.67
  5. Step 5: Solve for x
    x = 330,897,912.67/20,594.53
  6. Step 6: Final answer
    x = 16,067.28

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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.