Home / 20,466.08-28,242.16-12,080.96

Finding the Fourth Proportional to 20,466.08, 28,242.16 and 12,080.96

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Solution

The fourth proportional to 20,466.08, 28,242.16 and 12,080.96 is: 16,671.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.08 : 28,242.16 = 12,080.96 : x
  2. Step 2: Convert to fraction form
    20,466.08/28,242.16 = 12,080.96/x
  3. Step 3: Cross multiply
    20,466.08x = 28,242.16 × 12,080.96
  4. Step 4: Simplify right side
    20,466.08x = 341,192,405.27
  5. Step 5: Solve for x
    x = 341,192,405.27/20,466.08
  6. Step 6: Final answer
    x = 16,671.12

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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.