Home / 39,541.80-54,567.68-21,636.80

Finding the Fourth Proportional to 39,541.80, 54,567.68 and 21,636.80

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Solution

The fourth proportional to 39,541.80, 54,567.68 and 21,636.80 is: 29,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,541.80 : 54,567.68 = 21,636.80 : x
  2. Step 2: Convert to fraction form
    39,541.80/54,567.68 = 21,636.80/x
  3. Step 3: Cross multiply
    39,541.80x = 54,567.68 × 21,636.80
  4. Step 4: Simplify right side
    39,541.80x = 1,180,670,088.00
  5. Step 5: Solve for x
    x = 1,180,670,088.00/39,541.80
  6. Step 6: Final answer
    x = 29,858.79

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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.