Home / 28,367.28-39,146.09-15,792.03

Finding the Fourth Proportional to 28,367.28, 39,146.09 and 15,792.03

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Solution

The fourth proportional to 28,367.28, 39,146.09 and 15,792.03 is: 21,792.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.28 : 39,146.09 = 15,792.03 : x
  2. Step 2: Convert to fraction form
    28,367.28/39,146.09 = 15,792.03/x
  3. Step 3: Cross multiply
    28,367.28x = 39,146.09 × 15,792.03
  4. Step 4: Simplify right side
    28,367.28x = 618,196,148.70
  5. Step 5: Solve for x
    x = 618,196,148.70/28,367.28
  6. Step 6: Final answer
    x = 21,792.58

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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.