Home / 28,195.96-38,912.01-16,100.02

Finding the Fourth Proportional to 28,195.96, 38,912.01 and 16,100.02

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Solution

The fourth proportional to 28,195.96, 38,912.01 and 16,100.02 is: 22,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.96 : 38,912.01 = 16,100.02 : x
  2. Step 2: Convert to fraction form
    28,195.96/38,912.01 = 16,100.02/x
  3. Step 3: Cross multiply
    28,195.96x = 38,912.01 × 16,100.02
  4. Step 4: Simplify right side
    28,195.96x = 626,484,139.24
  5. Step 5: Solve for x
    x = 626,484,139.24/28,195.96
  6. Step 6: Final answer
    x = 22,218.93

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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.