Home / 43,918.05-65,878.89-12,753.30

Finding the Fourth Proportional to 43,918.05, 65,878.89 and 12,753.30

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Solution

The fourth proportional to 43,918.05, 65,878.89 and 12,753.30 is: 19,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,918.05 : 65,878.89 = 12,753.30 : x
  2. Step 2: Convert to fraction form
    43,918.05/65,878.89 = 12,753.30/x
  3. Step 3: Cross multiply
    43,918.05x = 65,878.89 × 12,753.30
  4. Step 4: Simplify right side
    43,918.05x = 840,173,247.84
  5. Step 5: Solve for x
    x = 840,173,247.84/43,918.05
  6. Step 6: Final answer
    x = 19,130.48

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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.