Home / 43,918.34-65,878.59-12,753.86

Finding the Fourth Proportional to 43,918.34, 65,878.59 and 12,753.86

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Solution

The fourth proportional to 43,918.34, 65,878.59 and 12,753.86 is: 19,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,918.34 : 65,878.59 = 12,753.86 : x
  2. Step 2: Convert to fraction form
    43,918.34/65,878.59 = 12,753.86/x
  3. Step 3: Cross multiply
    43,918.34x = 65,878.59 × 12,753.86
  4. Step 4: Simplify right side
    43,918.34x = 840,206,313.86
  5. Step 5: Solve for x
    x = 840,206,313.86/43,918.34
  6. Step 6: Final answer
    x = 19,131.10

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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.