Home / 39,111.18-53,973.36-21,883.56

Finding the Fourth Proportional to 39,111.18, 53,973.36 and 21,883.56

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Solution

The fourth proportional to 39,111.18, 53,973.36 and 21,883.56 is: 30,199.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.18 : 53,973.36 = 21,883.56 : x
  2. Step 2: Convert to fraction form
    39,111.18/53,973.36 = 21,883.56/x
  3. Step 3: Cross multiply
    39,111.18x = 53,973.36 × 21,883.56
  4. Step 4: Simplify right side
    39,111.18x = 1,181,129,261.96
  5. Step 5: Solve for x
    x = 1,181,129,261.96/39,111.18
  6. Step 6: Final answer
    x = 30,199.27

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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.