Home / 28,828.50-39,783.37-16,082.51

Finding the Fourth Proportional to 28,828.50, 39,783.37 and 16,082.51

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Solution

The fourth proportional to 28,828.50, 39,783.37 and 16,082.51 is: 22,193.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.50 : 39,783.37 = 16,082.51 : x
  2. Step 2: Convert to fraction form
    28,828.50/39,783.37 = 16,082.51/x
  3. Step 3: Cross multiply
    28,828.50x = 39,783.37 × 16,082.51
  4. Step 4: Simplify right side
    28,828.50x = 639,816,246.94
  5. Step 5: Solve for x
    x = 639,816,246.94/28,828.50
  6. Step 6: Final answer
    x = 22,193.88

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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.