Home / 39,646.60-54,709.59-21,737.89

Finding the Fourth Proportional to 39,646.60, 54,709.59 and 21,737.89

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Solution

The fourth proportional to 39,646.60, 54,709.59 and 21,737.89 is: 29,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,646.60 : 54,709.59 = 21,737.89 : x
  2. Step 2: Convert to fraction form
    39,646.60/54,709.59 = 21,737.89/x
  3. Step 3: Cross multiply
    39,646.60x = 54,709.59 × 21,737.89
  4. Step 4: Simplify right side
    39,646.60x = 1,189,271,049.37
  5. Step 5: Solve for x
    x = 1,189,271,049.37/39,646.60
  6. Step 6: Final answer
    x = 29,996.80

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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.