Home / 21,304.98-31,958.91-15,530.58

Finding the Fourth Proportional to 21,304.98, 31,958.91 and 15,530.58

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Solution

The fourth proportional to 21,304.98, 31,958.91 and 15,530.58 is: 23,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.98 : 31,958.91 = 15,530.58 : x
  2. Step 2: Convert to fraction form
    21,304.98/31,958.91 = 15,530.58/x
  3. Step 3: Cross multiply
    21,304.98x = 31,958.91 × 15,530.58
  4. Step 4: Simplify right side
    21,304.98x = 496,340,408.47
  5. Step 5: Solve for x
    x = 496,340,408.47/21,304.98
  6. Step 6: Final answer
    x = 23,296.92

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1.5x scale

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.