Home / 21,463.55-29,619.77-12,031.50

Finding the Fourth Proportional to 21,463.55, 29,619.77 and 12,031.50

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Solution

The fourth proportional to 21,463.55, 29,619.77 and 12,031.50 is: 16,603.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.55 : 29,619.77 = 12,031.50 : x
  2. Step 2: Convert to fraction form
    21,463.55/29,619.77 = 12,031.50/x
  3. Step 3: Cross multiply
    21,463.55x = 29,619.77 × 12,031.50
  4. Step 4: Simplify right side
    21,463.55x = 356,370,202.60
  5. Step 5: Solve for x
    x = 356,370,202.60/21,463.55
  6. Step 6: Final answer
    x = 16,603.51

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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.