Home / 28,664.84-39,561.53-16,728.68

Finding the Fourth Proportional to 28,664.84, 39,561.53 and 16,728.68

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Solution

The fourth proportional to 28,664.84, 39,561.53 and 16,728.68 is: 23,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.84 : 39,561.53 = 16,728.68 : x
  2. Step 2: Convert to fraction form
    28,664.84/39,561.53 = 16,728.68/x
  3. Step 3: Cross multiply
    28,664.84x = 39,561.53 × 16,728.68
  4. Step 4: Simplify right side
    28,664.84x = 661,811,894.23
  5. Step 5: Solve for x
    x = 661,811,894.23/28,664.84
  6. Step 6: Final answer
    x = 23,087.94

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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.