Home / 28,731.15-39,653.73-16,792.16

Finding the Fourth Proportional to 28,731.15, 39,653.73 and 16,792.16

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Solution

The fourth proportional to 28,731.15, 39,653.73 and 16,792.16 is: 23,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.15 : 39,653.73 = 16,792.16 : x
  2. Step 2: Convert to fraction form
    28,731.15/39,653.73 = 16,792.16/x
  3. Step 3: Cross multiply
    28,731.15x = 39,653.73 × 16,792.16
  4. Step 4: Simplify right side
    28,731.15x = 665,871,580.49
  5. Step 5: Solve for x
    x = 665,871,580.49/28,731.15
  6. Step 6: Final answer
    x = 23,175.95

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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.