Home / 20,591.45-28,411.43-12,093.13

Finding the Fourth Proportional to 20,591.45, 28,411.43 and 12,093.13

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Solution

The fourth proportional to 20,591.45, 28,411.43 and 12,093.13 is: 16,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.45 : 28,411.43 = 12,093.13 : x
  2. Step 2: Convert to fraction form
    20,591.45/28,411.43 = 12,093.13/x
  3. Step 3: Cross multiply
    20,591.45x = 28,411.43 × 12,093.13
  4. Step 4: Simplify right side
    20,591.45x = 343,583,091.52
  5. Step 5: Solve for x
    x = 343,583,091.52/20,591.45
  6. Step 6: Final answer
    x = 16,685.72

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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.