Home / 38,866.03-53,633.95-21,871.22

Finding the Fourth Proportional to 38,866.03, 53,633.95 and 21,871.22

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Solution

The fourth proportional to 38,866.03, 53,633.95 and 21,871.22 is: 30,181.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,866.03 : 53,633.95 = 21,871.22 : x
  2. Step 2: Convert to fraction form
    38,866.03/53,633.95 = 21,871.22/x
  3. Step 3: Cross multiply
    38,866.03x = 53,633.95 × 21,871.22
  4. Step 4: Simplify right side
    38,866.03x = 1,173,039,919.92
  5. Step 5: Solve for x
    x = 1,173,039,919.92/38,866.03
  6. Step 6: Final answer
    x = 30,181.62

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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.