Home / 20,689.48-31,027.26-6,835.24

Finding the Fourth Proportional to 20,689.48, 31,027.26 and 6,835.24

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Solution

The fourth proportional to 20,689.48, 31,027.26 and 6,835.24 is: 10,250.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689.48 : 31,027.26 = 6,835.24 : x
  2. Step 2: Convert to fraction form
    20,689.48/31,027.26 = 6,835.24/x
  3. Step 3: Cross multiply
    20,689.48x = 31,027.26 × 6,835.24
  4. Step 4: Simplify right side
    20,689.48x = 212,078,768.64
  5. Step 5: Solve for x
    x = 212,078,768.64/20,689.48
  6. Step 6: Final answer
    x = 10,250.56

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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.