Home / 43,245.12-64,876.43-18,285.13

Finding the Fourth Proportional to 43,245.12, 64,876.43 and 18,285.13

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Solution

The fourth proportional to 43,245.12, 64,876.43 and 18,285.13 is: 27,431.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,245.12 : 64,876.43 = 18,285.13 : x
  2. Step 2: Convert to fraction form
    43,245.12/64,876.43 = 18,285.13/x
  3. Step 3: Cross multiply
    43,245.12x = 64,876.43 × 18,285.13
  4. Step 4: Simplify right side
    43,245.12x = 1,186,273,609.25
  5. Step 5: Solve for x
    x = 1,186,273,609.25/43,245.12
  6. Step 6: Final answer
    x = 27,431.39

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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.