Home / 19,911.24-27,477.90-11,532.60

Finding the Fourth Proportional to 19,911.24, 27,477.90 and 11,532.60

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Solution

The fourth proportional to 19,911.24, 27,477.90 and 11,532.60 is: 15,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.24 : 27,477.90 = 11,532.60 : x
  2. Step 2: Convert to fraction form
    19,911.24/27,477.90 = 11,532.60/x
  3. Step 3: Cross multiply
    19,911.24x = 27,477.90 × 11,532.60
  4. Step 4: Simplify right side
    19,911.24x = 316,891,629.54
  5. Step 5: Solve for x
    x = 316,891,629.54/19,911.24
  6. Step 6: Final answer
    x = 15,915.21

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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.