Home / 20,718.18-31,077.23-5,927.09

Finding the Fourth Proportional to 20,718.18, 31,077.23 and 5,927.09

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Solution

The fourth proportional to 20,718.18, 31,077.23 and 5,927.09 is: 8,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.18 : 31,077.23 = 5,927.09 : x
  2. Step 2: Convert to fraction form
    20,718.18/31,077.23 = 5,927.09/x
  3. Step 3: Cross multiply
    20,718.18x = 31,077.23 × 5,927.09
  4. Step 4: Simplify right side
    20,718.18x = 184,197,354.14
  5. Step 5: Solve for x
    x = 184,197,354.14/20,718.18
  6. Step 6: Final answer
    x = 8,890.61

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1.5x scale

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.