Home / 21,356.54-32,040.66-10,272.50

Finding the Fourth Proportional to 21,356.54, 32,040.66 and 10,272.50

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Solution

The fourth proportional to 21,356.54, 32,040.66 and 10,272.50 is: 15,411.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.54 : 32,040.66 = 10,272.50 : x
  2. Step 2: Convert to fraction form
    21,356.54/32,040.66 = 10,272.50/x
  3. Step 3: Cross multiply
    21,356.54x = 32,040.66 × 10,272.50
  4. Step 4: Simplify right side
    21,356.54x = 329,137,679.85
  5. Step 5: Solve for x
    x = 329,137,679.85/21,356.54
  6. Step 6: Final answer
    x = 15,411.56

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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.