Home / 19,946.60-29,855.10-15,540.20

Finding the Fourth Proportional to 19,946.60, 29,855.10 and 15,540.20

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Solution

The fourth proportional to 19,946.60, 29,855.10 and 15,540.20 is: 23,259.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,946.60 : 29,855.10 = 15,540.20 : x
  2. Step 2: Convert to fraction form
    19,946.60/29,855.10 = 15,540.20/x
  3. Step 3: Cross multiply
    19,946.60x = 29,855.10 × 15,540.20
  4. Step 4: Simplify right side
    19,946.60x = 463,954,225.02
  5. Step 5: Solve for x
    x = 463,954,225.02/19,946.60
  6. Step 6: Final answer
    x = 23,259.81

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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.