Home / 28,127.10-38,817.75-16,194.30

Finding the Fourth Proportional to 28,127.10, 38,817.75 and 16,194.30

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Solution

The fourth proportional to 28,127.10, 38,817.75 and 16,194.30 is: 22,349.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.10 : 38,817.75 = 16,194.30 : x
  2. Step 2: Convert to fraction form
    28,127.10/38,817.75 = 16,194.30/x
  3. Step 3: Cross multiply
    28,127.10x = 38,817.75 × 16,194.30
  4. Step 4: Simplify right side
    28,127.10x = 628,626,288.83
  5. Step 5: Solve for x
    x = 628,626,288.83/28,127.10
  6. Step 6: Final answer
    x = 22,349.49

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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.