Home / 28,143-38,839.44-16,043.77

Finding the Fourth Proportional to 28,143, 38,839.44 and 16,043.77

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Solution

The fourth proportional to 28,143, 38,839.44 and 16,043.77 is: 22,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143 : 38,839.44 = 16,043.77 : x
  2. Step 2: Convert to fraction form
    28,143/38,839.44 = 16,043.77/x
  3. Step 3: Cross multiply
    28,143x = 38,839.44 × 16,043.77
  4. Step 4: Simplify right side
    28,143x = 623,131,151.00
  5. Step 5: Solve for x
    x = 623,131,151.00/28,143
  6. Step 6: Final answer
    x = 22,141.60

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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.