Home / 20,512.35-28,314.09-12,017.16

Finding the Fourth Proportional to 20,512.35, 28,314.09 and 12,017.16

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Solution

The fourth proportional to 20,512.35, 28,314.09 and 12,017.16 is: 16,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.35 : 28,314.09 = 12,017.16 : x
  2. Step 2: Convert to fraction form
    20,512.35/28,314.09 = 12,017.16/x
  3. Step 3: Cross multiply
    20,512.35x = 28,314.09 × 12,017.16
  4. Step 4: Simplify right side
    20,512.35x = 340,254,949.78
  5. Step 5: Solve for x
    x = 340,254,949.78/20,512.35
  6. Step 6: Final answer
    x = 16,587.81

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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.