Home / 28,122.03-38,810.10-16,185.10

Finding the Fourth Proportional to 28,122.03, 38,810.10 and 16,185.10

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Solution

The fourth proportional to 28,122.03, 38,810.10 and 16,185.10 is: 22,336.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.03 : 38,810.10 = 16,185.10 : x
  2. Step 2: Convert to fraction form
    28,122.03/38,810.10 = 16,185.10/x
  3. Step 3: Cross multiply
    28,122.03x = 38,810.10 × 16,185.10
  4. Step 4: Simplify right side
    28,122.03x = 628,145,349.51
  5. Step 5: Solve for x
    x = 628,145,349.51/28,122.03
  6. Step 6: Final answer
    x = 22,336.42

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Double scale
Find fourth proportional to 28,123.03, 38,811.48 and 16,186.10
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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.