Home / 25,599.52-38,406.84-13,128.28

Finding the Fourth Proportional to 25,599.52, 38,406.84 and 13,128.28

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Solution

The fourth proportional to 25,599.52, 38,406.84 and 13,128.28 is: 19,696.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,599.52 : 38,406.84 = 13,128.28 : x
  2. Step 2: Convert to fraction form
    25,599.52/38,406.84 = 13,128.28/x
  3. Step 3: Cross multiply
    25,599.52x = 38,406.84 × 13,128.28
  4. Step 4: Simplify right side
    25,599.52x = 504,215,822.06
  5. Step 5: Solve for x
    x = 504,215,822.06/25,599.52
  6. Step 6: Final answer
    x = 19,696.30

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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.