Home / 34,388.12-47,477.70-21,658.64

Finding the Fourth Proportional to 34,388.12, 47,477.70 and 21,658.64

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Solution

The fourth proportional to 34,388.12, 47,477.70 and 21,658.64 is: 29,902.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,388.12 : 47,477.70 = 21,658.64 : x
  2. Step 2: Convert to fraction form
    34,388.12/47,477.70 = 21,658.64/x
  3. Step 3: Cross multiply
    34,388.12x = 47,477.70 × 21,658.64
  4. Step 4: Simplify right side
    34,388.12x = 1,028,302,412.33
  5. Step 5: Solve for x
    x = 1,028,302,412.33/34,388.12
  6. Step 6: Final answer
    x = 29,902.84

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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.