Home / 21,333.82-31,954.51-15,477.50

Finding the Fourth Proportional to 21,333.82, 31,954.51 and 15,477.50

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Solution

The fourth proportional to 21,333.82, 31,954.51 and 15,477.50 is: 23,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.82 : 31,954.51 = 15,477.50 : x
  2. Step 2: Convert to fraction form
    21,333.82/31,954.51 = 15,477.50/x
  3. Step 3: Cross multiply
    21,333.82x = 31,954.51 × 15,477.50
  4. Step 4: Simplify right side
    21,333.82x = 494,575,928.53
  5. Step 5: Solve for x
    x = 494,575,928.53/21,333.82
  6. Step 6: Final answer
    x = 23,182.72

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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.