Home / 43,108.12-64,662.18-11,943.38

Finding the Fourth Proportional to 43,108.12, 64,662.18 and 11,943.38

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Solution

The fourth proportional to 43,108.12, 64,662.18 and 11,943.38 is: 17,915.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,108.12 : 64,662.18 = 11,943.38 : x
  2. Step 2: Convert to fraction form
    43,108.12/64,662.18 = 11,943.38/x
  3. Step 3: Cross multiply
    43,108.12x = 64,662.18 × 11,943.38
  4. Step 4: Simplify right side
    43,108.12x = 772,284,987.37
  5. Step 5: Solve for x
    x = 772,284,987.37/43,108.12
  6. Step 6: Final answer
    x = 17,915.07

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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.