Home / 28,136.36-39,005.75-26,638.27

Finding the Fourth Proportional to 28,136.36, 39,005.75 and 26,638.27

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Solution

The fourth proportional to 28,136.36, 39,005.75 and 26,638.27 is: 36,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,136.36 : 39,005.75 = 26,638.27 : x
  2. Step 2: Convert to fraction form
    28,136.36/39,005.75 = 26,638.27/x
  3. Step 3: Cross multiply
    28,136.36x = 39,005.75 × 26,638.27
  4. Step 4: Simplify right side
    28,136.36x = 1,039,045,669.13
  5. Step 5: Solve for x
    x = 1,039,045,669.13/28,136.36
  6. Step 6: Final answer
    x = 36,928.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.