Home / 25,981.52-38,982.57-13,509.41

Finding the Fourth Proportional to 25,981.52, 38,982.57 and 13,509.41

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Solution

The fourth proportional to 25,981.52, 38,982.57 and 13,509.41 is: 20,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.52 : 38,982.57 = 13,509.41 : x
  2. Step 2: Convert to fraction form
    25,981.52/38,982.57 = 13,509.41/x
  3. Step 3: Cross multiply
    25,981.52x = 38,982.57 × 13,509.41
  4. Step 4: Simplify right side
    25,981.52x = 526,631,326.07
  5. Step 5: Solve for x
    x = 526,631,326.07/25,981.52
  6. Step 6: Final answer
    x = 20,269.46

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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.