Home / 43,530.31-65,295.48-11,940.70

Finding the Fourth Proportional to 43,530.31, 65,295.48 and 11,940.70

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Solution

The fourth proportional to 43,530.31, 65,295.48 and 11,940.70 is: 17,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,530.31 : 65,295.48 = 11,940.70 : x
  2. Step 2: Convert to fraction form
    43,530.31/65,295.48 = 11,940.70/x
  3. Step 3: Cross multiply
    43,530.31x = 65,295.48 × 11,940.70
  4. Step 4: Simplify right side
    43,530.31x = 779,673,738.04
  5. Step 5: Solve for x
    x = 779,673,738.04/43,530.31
  6. Step 6: Final answer
    x = 17,911.05

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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.