Home / 25,428.52-35,091.32-15,492.52

Finding the Fourth Proportional to 25,428.52, 35,091.32 and 15,492.52

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Solution

The fourth proportional to 25,428.52, 35,091.32 and 15,492.52 is: 21,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.52 : 35,091.32 = 15,492.52 : x
  2. Step 2: Convert to fraction form
    25,428.52/35,091.32 = 15,492.52/x
  3. Step 3: Cross multiply
    25,428.52x = 35,091.32 × 15,492.52
  4. Step 4: Simplify right side
    25,428.52x = 543,652,976.93
  5. Step 5: Solve for x
    x = 543,652,976.93/25,428.52
  6. Step 6: Final answer
    x = 21,379.65

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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.