Home / 38,777.36-53,508.96-21,777.75

Finding the Fourth Proportional to 38,777.36, 53,508.96 and 21,777.75

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Solution

The fourth proportional to 38,777.36, 53,508.96 and 21,777.75 is: 30,051.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,777.36 : 53,508.96 = 21,777.75 : x
  2. Step 2: Convert to fraction form
    38,777.36/53,508.96 = 21,777.75/x
  3. Step 3: Cross multiply
    38,777.36x = 53,508.96 × 21,777.75
  4. Step 4: Simplify right side
    38,777.36x = 1,165,304,753.64
  5. Step 5: Solve for x
    x = 1,165,304,753.64/38,777.36
  6. Step 6: Final answer
    x = 30,051.17

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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.