Home / 20,589.54-28,417.77-11,637.42

Finding the Fourth Proportional to 20,589.54, 28,417.77 and 11,637.42

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Solution

The fourth proportional to 20,589.54, 28,417.77 and 11,637.42 is: 16,062.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.54 : 28,417.77 = 11,637.42 : x
  2. Step 2: Convert to fraction form
    20,589.54/28,417.77 = 11,637.42/x
  3. Step 3: Cross multiply
    20,589.54x = 28,417.77 × 11,637.42
  4. Step 4: Simplify right side
    20,589.54x = 330,709,524.95
  5. Step 5: Solve for x
    x = 330,709,524.95/20,589.54
  6. Step 6: Final answer
    x = 16,062.02

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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.