Home / 21,263.30-31,896.09-6,472.70

Finding the Fourth Proportional to 21,263.30, 31,896.09 and 6,472.70

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Solution

The fourth proportional to 21,263.30, 31,896.09 and 6,472.70 is: 9,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263.30 : 31,896.09 = 6,472.70 : x
  2. Step 2: Convert to fraction form
    21,263.30/31,896.09 = 6,472.70/x
  3. Step 3: Cross multiply
    21,263.30x = 31,896.09 × 6,472.70
  4. Step 4: Simplify right side
    21,263.30x = 206,453,821.74
  5. Step 5: Solve for x
    x = 206,453,821.74/21,263.30
  6. Step 6: Final answer
    x = 9,709.40

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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.