Home / 29,431.62-40,615.33-21,911.58

Finding the Fourth Proportional to 29,431.62, 40,615.33 and 21,911.58

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Solution

The fourth proportional to 29,431.62, 40,615.33 and 21,911.58 is: 30,237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,431.62 : 40,615.33 = 21,911.58 : x
  2. Step 2: Convert to fraction form
    29,431.62/40,615.33 = 21,911.58/x
  3. Step 3: Cross multiply
    29,431.62x = 40,615.33 × 21,911.58
  4. Step 4: Simplify right side
    29,431.62x = 889,946,038.83
  5. Step 5: Solve for x
    x = 889,946,038.83/29,431.62
  6. Step 6: Final answer
    x = 30,237.75

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1.5x scale

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.