Home / 39,009.77-53,832.96-21,782.41

Finding the Fourth Proportional to 39,009.77, 53,832.96 and 21,782.41

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Solution

The fourth proportional to 39,009.77, 53,832.96 and 21,782.41 is: 30,059.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,009.77 : 53,832.96 = 21,782.41 : x
  2. Step 2: Convert to fraction form
    39,009.77/53,832.96 = 21,782.41/x
  3. Step 3: Cross multiply
    39,009.77x = 53,832.96 × 21,782.41
  4. Step 4: Simplify right side
    39,009.77x = 1,172,611,606.23
  5. Step 5: Solve for x
    x = 1,172,611,606.23/39,009.77
  6. Step 6: Final answer
    x = 30,059.43

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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.