Home / 28,120.77-38,810.58-27,197.76

Finding the Fourth Proportional to 28,120.77, 38,810.58 and 27,197.76

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Solution

The fourth proportional to 28,120.77, 38,810.58 and 27,197.76 is: 37,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.77 : 38,810.58 = 27,197.76 : x
  2. Step 2: Convert to fraction form
    28,120.77/38,810.58 = 27,197.76/x
  3. Step 3: Cross multiply
    28,120.77x = 38,810.58 × 27,197.76
  4. Step 4: Simplify right side
    28,120.77x = 1,055,560,840.30
  5. Step 5: Solve for x
    x = 1,055,560,840.30/28,120.77
  6. Step 6: Final answer
    x = 37,536.70

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Double scale
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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.