Home / 20,133.74-27,782.19-11,635.76

Finding the Fourth Proportional to 20,133.74, 27,782.19 and 11,635.76

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Solution

The fourth proportional to 20,133.74, 27,782.19 and 11,635.76 is: 16,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.74 : 27,782.19 = 11,635.76 : x
  2. Step 2: Convert to fraction form
    20,133.74/27,782.19 = 11,635.76/x
  3. Step 3: Cross multiply
    20,133.74x = 27,782.19 × 11,635.76
  4. Step 4: Simplify right side
    20,133.74x = 323,266,895.11
  5. Step 5: Solve for x
    x = 323,266,895.11/20,133.74
  6. Step 6: Final answer
    x = 16,055.98

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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.