Home / 21,090.00-31,635.05-6,297.76

Finding the Fourth Proportional to 21,090.00, 31,635.05 and 6,297.76

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Solution

The fourth proportional to 21,090.00, 31,635.05 and 6,297.76 is: 9,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090.00 : 31,635.05 = 6,297.76 : x
  2. Step 2: Convert to fraction form
    21,090.00/31,635.05 = 6,297.76/x
  3. Step 3: Cross multiply
    21,090.00x = 31,635.05 × 6,297.76
  4. Step 4: Simplify right side
    21,090.00x = 199,229,960.54
  5. Step 5: Solve for x
    x = 199,229,960.54/21,090.00
  6. Step 6: Final answer
    x = 9,446.65

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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.