Home / 39,567.68-54,603.36-21,662.72

Finding the Fourth Proportional to 39,567.68, 54,603.36 and 21,662.72

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Solution

The fourth proportional to 39,567.68, 54,603.36 and 21,662.72 is: 29,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,567.68 : 54,603.36 = 21,662.72 : x
  2. Step 2: Convert to fraction form
    39,567.68/54,603.36 = 21,662.72/x
  3. Step 3: Cross multiply
    39,567.68x = 54,603.36 × 21,662.72
  4. Step 4: Simplify right side
    39,567.68x = 1,182,857,298.74
  5. Step 5: Solve for x
    x = 1,182,857,298.74/39,567.68
  6. Step 6: Final answer
    x = 29,894.53

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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.