Home / 28,180.96-38,888.77-16,082.11

Finding the Fourth Proportional to 28,180.96, 38,888.77 and 16,082.11

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Solution

The fourth proportional to 28,180.96, 38,888.77 and 16,082.11 is: 22,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.96 : 38,888.77 = 16,082.11 : x
  2. Step 2: Convert to fraction form
    28,180.96/38,888.77 = 16,082.11/x
  3. Step 3: Cross multiply
    28,180.96x = 38,888.77 × 16,082.11
  4. Step 4: Simplify right side
    28,180.96x = 625,413,485.31
  5. Step 5: Solve for x
    x = 625,413,485.31/28,180.96
  6. Step 6: Final answer
    x = 22,192.77

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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.