Home / 19,943.80-29,915.70-11,633.20

Finding the Fourth Proportional to 19,943.80, 29,915.70 and 11,633.20

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Solution

The fourth proportional to 19,943.80, 29,915.70 and 11,633.20 is: 17,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.80 : 29,915.70 = 11,633.20 : x
  2. Step 2: Convert to fraction form
    19,943.80/29,915.70 = 11,633.20/x
  3. Step 3: Cross multiply
    19,943.80x = 29,915.70 × 11,633.20
  4. Step 4: Simplify right side
    19,943.80x = 348,015,321.24
  5. Step 5: Solve for x
    x = 348,015,321.24/19,943.80
  6. Step 6: Final answer
    x = 17,449.80

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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.