Home / 43,011.10-64,516.62-13,431.47

Finding the Fourth Proportional to 43,011.10, 64,516.62 and 13,431.47

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Solution

The fourth proportional to 43,011.10, 64,516.62 and 13,431.47 is: 20,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,011.10 : 64,516.62 = 13,431.47 : x
  2. Step 2: Convert to fraction form
    43,011.10/64,516.62 = 13,431.47/x
  3. Step 3: Cross multiply
    43,011.10x = 64,516.62 × 13,431.47
  4. Step 4: Simplify right side
    43,011.10x = 866,552,918.32
  5. Step 5: Solve for x
    x = 866,552,918.32/43,011.10
  6. Step 6: Final answer
    x = 20,147.19

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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.