Home / 28,777.36-39,703.62-16,199.68

Finding the Fourth Proportional to 28,777.36, 39,703.62 and 16,199.68

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Solution

The fourth proportional to 28,777.36, 39,703.62 and 16,199.68 is: 22,350.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.36 : 39,703.62 = 16,199.68 : x
  2. Step 2: Convert to fraction form
    28,777.36/39,703.62 = 16,199.68/x
  3. Step 3: Cross multiply
    28,777.36x = 39,703.62 × 16,199.68
  4. Step 4: Simplify right side
    28,777.36x = 643,185,938.84
  5. Step 5: Solve for x
    x = 643,185,938.84/28,777.36
  6. Step 6: Final answer
    x = 22,350.42

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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.