Home / 20,509.44-28,302.22-11,558.74

Finding the Fourth Proportional to 20,509.44, 28,302.22 and 11,558.74

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Solution

The fourth proportional to 20,509.44, 28,302.22 and 11,558.74 is: 15,950.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509.44 : 28,302.22 = 11,558.74 : x
  2. Step 2: Convert to fraction form
    20,509.44/28,302.22 = 11,558.74/x
  3. Step 3: Cross multiply
    20,509.44x = 28,302.22 × 11,558.74
  4. Step 4: Simplify right side
    20,509.44x = 327,138,002.40
  5. Step 5: Solve for x
    x = 327,138,002.40/20,509.44
  6. Step 6: Final answer
    x = 15,950.61

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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.