Home / 38,784.33-53,522.59-21,789.29

Finding the Fourth Proportional to 38,784.33, 53,522.59 and 21,789.29

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Solution

The fourth proportional to 38,784.33, 53,522.59 and 21,789.29 is: 30,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,784.33 : 53,522.59 = 21,789.29 : x
  2. Step 2: Convert to fraction form
    38,784.33/53,522.59 = 21,789.29/x
  3. Step 3: Cross multiply
    38,784.33x = 53,522.59 × 21,789.29
  4. Step 4: Simplify right side
    38,784.33x = 1,166,219,235.06
  5. Step 5: Solve for x
    x = 1,166,219,235.06/38,784.33
  6. Step 6: Final answer
    x = 30,069.34

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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.