Home / 20,543.18-30,832.26-8,071.93

Finding the Fourth Proportional to 20,543.18, 30,832.26 and 8,071.93

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Solution

The fourth proportional to 20,543.18, 30,832.26 and 8,071.93 is: 12,114.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543.18 : 30,832.26 = 8,071.93 : x
  2. Step 2: Convert to fraction form
    20,543.18/30,832.26 = 8,071.93/x
  3. Step 3: Cross multiply
    20,543.18x = 30,832.26 × 8,071.93
  4. Step 4: Simplify right side
    20,543.18x = 248,875,679.30
  5. Step 5: Solve for x
    x = 248,875,679.30/20,543.18
  6. Step 6: Final answer
    x = 12,114.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.