Home / 28,742.34-39,664.43-16,167.09

Finding the Fourth Proportional to 28,742.34, 39,664.43 and 16,167.09

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Solution

The fourth proportional to 28,742.34, 39,664.43 and 16,167.09 is: 22,310.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.34 : 39,664.43 = 16,167.09 : x
  2. Step 2: Convert to fraction form
    28,742.34/39,664.43 = 16,167.09/x
  3. Step 3: Cross multiply
    28,742.34x = 39,664.43 × 16,167.09
  4. Step 4: Simplify right side
    28,742.34x = 641,258,629.08
  5. Step 5: Solve for x
    x = 641,258,629.08/28,742.34
  6. Step 6: Final answer
    x = 22,310.59

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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.