Home / 20,923.46-31,385.16-5,341.08

Finding the Fourth Proportional to 20,923.46, 31,385.16 and 5,341.08

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Solution

The fourth proportional to 20,923.46, 31,385.16 and 5,341.08 is: 8,011.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.46 : 31,385.16 = 5,341.08 : x
  2. Step 2: Convert to fraction form
    20,923.46/31,385.16 = 5,341.08/x
  3. Step 3: Cross multiply
    20,923.46x = 31,385.16 × 5,341.08
  4. Step 4: Simplify right side
    20,923.46x = 167,630,650.37
  5. Step 5: Solve for x
    x = 167,630,650.37/20,923.46
  6. Step 6: Final answer
    x = 8,011.61

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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.