Home / 19,648.20-29,405.10-11,862.60

Finding the Fourth Proportional to 19,648.20, 29,405.10 and 11,862.60

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Solution

The fourth proportional to 19,648.20, 29,405.10 and 11,862.60 is: 17,753.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.20 : 29,405.10 = 11,862.60 : x
  2. Step 2: Convert to fraction form
    19,648.20/29,405.10 = 11,862.60/x
  3. Step 3: Cross multiply
    19,648.20x = 29,405.10 × 11,862.60
  4. Step 4: Simplify right side
    19,648.20x = 348,820,939.26
  5. Step 5: Solve for x
    x = 348,820,939.26/19,648.20
  6. Step 6: Final answer
    x = 17,753.33

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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.