Home / 43,666.78-65,445.36-18,677.44

Finding the Fourth Proportional to 43,666.78, 65,445.36 and 18,677.44

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Solution

The fourth proportional to 43,666.78, 65,445.36 and 18,677.44 is: 27,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,666.78 : 65,445.36 = 18,677.44 : x
  2. Step 2: Convert to fraction form
    43,666.78/65,445.36 = 18,677.44/x
  3. Step 3: Cross multiply
    43,666.78x = 65,445.36 × 18,677.44
  4. Step 4: Simplify right side
    43,666.78x = 1,222,351,784.68
  5. Step 5: Solve for x
    x = 1,222,351,784.68/43,666.78
  6. Step 6: Final answer
    x = 27,992.72

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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.