Home / 19,035.09-28,536.21-9,160.78

Finding the Fourth Proportional to 19,035.09, 28,536.21 and 9,160.78

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Solution

The fourth proportional to 19,035.09, 28,536.21 and 9,160.78 is: 13,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,035.09 : 28,536.21 = 9,160.78 : x
  2. Step 2: Convert to fraction form
    19,035.09/28,536.21 = 9,160.78/x
  3. Step 3: Cross multiply
    19,035.09x = 28,536.21 × 9,160.78
  4. Step 4: Simplify right side
    19,035.09x = 261,413,941.84
  5. Step 5: Solve for x
    x = 261,413,941.84/19,035.09
  6. Step 6: Final answer
    x = 13,733.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.