Home / 28,742.53-39,664.29-16,167.25

Finding the Fourth Proportional to 28,742.53, 39,664.29 and 16,167.25

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Solution

The fourth proportional to 28,742.53, 39,664.29 and 16,167.25 is: 22,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.53 : 39,664.29 = 16,167.25 : x
  2. Step 2: Convert to fraction form
    28,742.53/39,664.29 = 16,167.25/x
  3. Step 3: Cross multiply
    28,742.53x = 39,664.29 × 16,167.25
  4. Step 4: Simplify right side
    28,742.53x = 641,262,411.67
  5. Step 5: Solve for x
    x = 641,262,411.67/28,742.53
  6. Step 6: Final answer
    x = 22,310.58

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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.