Home / 43,576.80-65,353.86-13,979.40

Finding the Fourth Proportional to 43,576.80, 65,353.86 and 13,979.40

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Solution

The fourth proportional to 43,576.80, 65,353.86 and 13,979.40 is: 20,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,576.80 : 65,353.86 = 13,979.40 : x
  2. Step 2: Convert to fraction form
    43,576.80/65,353.86 = 13,979.40/x
  3. Step 3: Cross multiply
    43,576.80x = 65,353.86 × 13,979.40
  4. Step 4: Simplify right side
    43,576.80x = 913,607,750.48
  5. Step 5: Solve for x
    x = 913,607,750.48/43,576.80
  6. Step 6: Final answer
    x = 20,965.46

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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.