Home / 38,989.21-53,804.91-21,084.17

Finding the Fourth Proportional to 38,989.21, 53,804.91 and 21,084.17

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Solution

The fourth proportional to 38,989.21, 53,804.91 and 21,084.17 is: 29,096.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,989.21 : 53,804.91 = 21,084.17 : x
  2. Step 2: Convert to fraction form
    38,989.21/53,804.91 = 21,084.17/x
  3. Step 3: Cross multiply
    38,989.21x = 53,804.91 × 21,084.17
  4. Step 4: Simplify right side
    38,989.21x = 1,134,431,722.95
  5. Step 5: Solve for x
    x = 1,134,431,722.95/38,989.21
  6. Step 6: Final answer
    x = 29,096.04

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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.