Home / 38,900.89-53,706.11-36,658.87

Finding the Fourth Proportional to 38,900.89, 53,706.11 and 36,658.87

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Solution

The fourth proportional to 38,900.89, 53,706.11 and 36,658.87 is: 50,610.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,900.89 : 53,706.11 = 36,658.87 : x
  2. Step 2: Convert to fraction form
    38,900.89/53,706.11 = 36,658.87/x
  3. Step 3: Cross multiply
    38,900.89x = 53,706.11 × 36,658.87
  4. Step 4: Simplify right side
    38,900.89x = 1,968,805,368.62
  5. Step 5: Solve for x
    x = 1,968,805,368.62/38,900.89
  6. Step 6: Final answer
    x = 50,610.81

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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.