Home / 20,696.31-28,561.53-14,657.37

Finding the Fourth Proportional to 20,696.31, 28,561.53 and 14,657.37

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Solution

The fourth proportional to 20,696.31, 28,561.53 and 14,657.37 is: 20,227.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.31 : 28,561.53 = 14,657.37 : x
  2. Step 2: Convert to fraction form
    20,696.31/28,561.53 = 14,657.37/x
  3. Step 3: Cross multiply
    20,696.31x = 28,561.53 × 14,657.37
  4. Step 4: Simplify right side
    20,696.31x = 418,636,912.98
  5. Step 5: Solve for x
    x = 418,636,912.98/20,696.31
  6. Step 6: Final answer
    x = 20,227.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.