Home / 21,232.02-31,859.92-8,761.26

Finding the Fourth Proportional to 21,232.02, 31,859.92 and 8,761.26

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Solution

The fourth proportional to 21,232.02, 31,859.92 and 8,761.26 is: 13,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.02 : 31,859.92 = 8,761.26 : x
  2. Step 2: Convert to fraction form
    21,232.02/31,859.92 = 8,761.26/x
  3. Step 3: Cross multiply
    21,232.02x = 31,859.92 × 8,761.26
  4. Step 4: Simplify right side
    21,232.02x = 279,133,042.70
  5. Step 5: Solve for x
    x = 279,133,042.70/21,232.02
  6. Step 6: Final answer
    x = 13,146.80

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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.