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Finding the Fourth Proportional to 25,696.73, 35,472.40 and 15,628.39

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Solution

The fourth proportional to 25,696.73, 35,472.40 and 15,628.39 is: 21,573.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,696.73 : 35,472.40 = 15,628.39 : x
  2. Step 2: Convert to fraction form
    25,696.73/35,472.40 = 15,628.39/x
  3. Step 3: Cross multiply
    25,696.73x = 35,472.40 × 15,628.39
  4. Step 4: Simplify right side
    25,696.73x = 554,376,373.68
  5. Step 5: Solve for x
    x = 554,376,373.68/25,696.73
  6. Step 6: Final answer
    x = 21,573.81

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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.