Home / 28,777.31-39,706.91-16,838.42

Finding the Fourth Proportional to 28,777.31, 39,706.91 and 16,838.42

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Solution

The fourth proportional to 28,777.31, 39,706.91 and 16,838.42 is: 23,233.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.31 : 39,706.91 = 16,838.42 : x
  2. Step 2: Convert to fraction form
    28,777.31/39,706.91 = 16,838.42/x
  3. Step 3: Cross multiply
    28,777.31x = 39,706.91 × 16,838.42
  4. Step 4: Simplify right side
    28,777.31x = 668,601,407.90
  5. Step 5: Solve for x
    x = 668,601,407.90/28,777.31
  6. Step 6: Final answer
    x = 23,233.63

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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.