Home / 28,158.80-38,696.45-26,857.80

Finding the Fourth Proportional to 28,158.80, 38,696.45 and 26,857.80

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Solution

The fourth proportional to 28,158.80, 38,696.45 and 26,857.80 is: 36,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.80 : 38,696.45 = 26,857.80 : x
  2. Step 2: Convert to fraction form
    28,158.80/38,696.45 = 26,857.80/x
  3. Step 3: Cross multiply
    28,158.80x = 38,696.45 × 26,857.80
  4. Step 4: Simplify right side
    28,158.80x = 1,039,301,380.52
  5. Step 5: Solve for x
    x = 1,039,301,380.52/28,158.80
  6. Step 6: Final answer
    x = 36,908.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.