Home / 39,762.22-54,871.93-21,857.34

Finding the Fourth Proportional to 39,762.22, 54,871.93 and 21,857.34

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Solution

The fourth proportional to 39,762.22, 54,871.93 and 21,857.34 is: 30,163.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,762.22 : 54,871.93 = 21,857.34 : x
  2. Step 2: Convert to fraction form
    39,762.22/54,871.93 = 21,857.34/x
  3. Step 3: Cross multiply
    39,762.22x = 54,871.93 × 21,857.34
  4. Step 4: Simplify right side
    39,762.22x = 1,199,354,344.87
  5. Step 5: Solve for x
    x = 1,199,354,344.87/39,762.22
  6. Step 6: Final answer
    x = 30,163.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.