Home / 38,968.69-53,777.36-21,973.75

Finding the Fourth Proportional to 38,968.69, 53,777.36 and 21,973.75

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Solution

The fourth proportional to 38,968.69, 53,777.36 and 21,973.75 is: 30,324.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,968.69 : 53,777.36 = 21,973.75 : x
  2. Step 2: Convert to fraction form
    38,968.69/53,777.36 = 21,973.75/x
  3. Step 3: Cross multiply
    38,968.69x = 53,777.36 × 21,973.75
  4. Step 4: Simplify right side
    38,968.69x = 1,181,690,184.79
  5. Step 5: Solve for x
    x = 1,181,690,184.79/38,968.69
  6. Step 6: Final answer
    x = 30,324.10

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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.