Home / 38,796.32-53,539.14-21,801.28

Finding the Fourth Proportional to 38,796.32, 53,539.14 and 21,801.28

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Solution

The fourth proportional to 38,796.32, 53,539.14 and 21,801.28 is: 30,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,796.32 : 53,539.14 = 21,801.28 : x
  2. Step 2: Convert to fraction form
    38,796.32/53,539.14 = 21,801.28/x
  3. Step 3: Cross multiply
    38,796.32x = 53,539.14 × 21,801.28
  4. Step 4: Simplify right side
    38,796.32x = 1,167,221,782.10
  5. Step 5: Solve for x
    x = 1,167,221,782.10/38,796.32
  6. Step 6: Final answer
    x = 30,085.89

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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.