Home / 19,651.15-29,458.20-9,781.10

Finding the Fourth Proportional to 19,651.15, 29,458.20 and 9,781.10

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Solution

The fourth proportional to 19,651.15, 29,458.20 and 9,781.10 is: 14,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.15 : 29,458.20 = 9,781.10 : x
  2. Step 2: Convert to fraction form
    19,651.15/29,458.20 = 9,781.10/x
  3. Step 3: Cross multiply
    19,651.15x = 29,458.20 × 9,781.10
  4. Step 4: Simplify right side
    19,651.15x = 288,133,551.11
  5. Step 5: Solve for x
    x = 288,133,551.11/19,651.15
  6. Step 6: Final answer
    x = 14,662.43

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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.