Home / 43,147.42-64,716.87-13,564.47

Finding the Fourth Proportional to 43,147.42, 64,716.87 and 13,564.47

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Solution

The fourth proportional to 43,147.42, 64,716.87 and 13,564.47 is: 20,345.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,147.42 : 64,716.87 = 13,564.47 : x
  2. Step 2: Convert to fraction form
    43,147.42/64,716.87 = 13,564.47/x
  3. Step 3: Cross multiply
    43,147.42x = 64,716.87 × 13,564.47
  4. Step 4: Simplify right side
    43,147.42x = 877,850,041.61
  5. Step 5: Solve for x
    x = 877,850,041.61/43,147.42
  6. Step 6: Final answer
    x = 20,345.37

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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.