Home / 38,828.84-53,583.30-21,835.89

Finding the Fourth Proportional to 38,828.84, 53,583.30 and 21,835.89

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Solution

The fourth proportional to 38,828.84, 53,583.30 and 21,835.89 is: 30,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,828.84 : 53,583.30 = 21,835.89 : x
  2. Step 2: Convert to fraction form
    38,828.84/53,583.30 = 21,835.89/x
  3. Step 3: Cross multiply
    38,828.84x = 53,583.30 × 21,835.89
  4. Step 4: Simplify right side
    38,828.84x = 1,170,039,044.64
  5. Step 5: Solve for x
    x = 1,170,039,044.64/38,828.84
  6. Step 6: Final answer
    x = 30,133.25

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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.