Home / 21,028.64-31,543.07-6,237.66

Finding the Fourth Proportional to 21,028.64, 31,543.07 and 6,237.66

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Solution

The fourth proportional to 21,028.64, 31,543.07 and 6,237.66 is: 9,356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.64 : 31,543.07 = 6,237.66 : x
  2. Step 2: Convert to fraction form
    21,028.64/31,543.07 = 6,237.66/x
  3. Step 3: Cross multiply
    21,028.64x = 31,543.07 × 6,237.66
  4. Step 4: Simplify right side
    21,028.64x = 196,754,914.83
  5. Step 5: Solve for x
    x = 196,754,914.83/21,028.64
  6. Step 6: Final answer
    x = 9,356.52

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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.