Home / 21,266.99-31,905.26-6,477.08

Finding the Fourth Proportional to 21,266.99, 31,905.26 and 6,477.08

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Solution

The fourth proportional to 21,266.99, 31,905.26 and 6,477.08 is: 9,717.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.99 : 31,905.26 = 6,477.08 : x
  2. Step 2: Convert to fraction form
    21,266.99/31,905.26 = 6,477.08/x
  3. Step 3: Cross multiply
    21,266.99x = 31,905.26 × 6,477.08
  4. Step 4: Simplify right side
    21,266.99x = 206,652,761.91
  5. Step 5: Solve for x
    x = 206,652,761.91/21,266.99
  6. Step 6: Final answer
    x = 9,717.07

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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.