Home / 20,543.11-28,349.86-12,051.32

Finding the Fourth Proportional to 20,543.11, 28,349.86 and 12,051.32

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Solution

The fourth proportional to 20,543.11, 28,349.86 and 12,051.32 is: 16,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.11 : 28,349.86 = 12,051.32 : x
  2. Step 2: Convert to fraction form
    20,543.11/28,349.86 = 12,051.32/x
  3. Step 3: Cross multiply
    20,543.11x = 28,349.86 × 12,051.32
  4. Step 4: Simplify right side
    20,543.11x = 341,653,234.82
  5. Step 5: Solve for x
    x = 341,653,234.82/20,543.11
  6. Step 6: Final answer
    x = 16,631.04

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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.