Home / 28,629.59-39,508.94-15,883.03

Finding the Fourth Proportional to 28,629.59, 39,508.94 and 15,883.03

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Solution

The fourth proportional to 28,629.59, 39,508.94 and 15,883.03 is: 21,918.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.59 : 39,508.94 = 15,883.03 : x
  2. Step 2: Convert to fraction form
    28,629.59/39,508.94 = 15,883.03/x
  3. Step 3: Cross multiply
    28,629.59x = 39,508.94 × 15,883.03
  4. Step 4: Simplify right side
    28,629.59x = 627,521,679.29
  5. Step 5: Solve for x
    x = 627,521,679.29/28,629.59
  6. Step 6: Final answer
    x = 21,918.64

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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.