Home / 21,190.30-29,243.45-11,630.52

Finding the Fourth Proportional to 21,190.30, 29,243.45 and 11,630.52

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Solution

The fourth proportional to 21,190.30, 29,243.45 and 11,630.52 is: 16,050.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.30 : 29,243.45 = 11,630.52 : x
  2. Step 2: Convert to fraction form
    21,190.30/29,243.45 = 11,630.52/x
  3. Step 3: Cross multiply
    21,190.30x = 29,243.45 × 11,630.52
  4. Step 4: Simplify right side
    21,190.30x = 340,116,530.09
  5. Step 5: Solve for x
    x = 340,116,530.09/21,190.30
  6. Step 6: Final answer
    x = 16,050.58

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1.5x scale

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.