Home / 38,878.12-53,651.68-22,111.12

Finding the Fourth Proportional to 38,878.12, 53,651.68 and 22,111.12

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Solution

The fourth proportional to 38,878.12, 53,651.68 and 22,111.12 is: 30,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,878.12 : 53,651.68 = 22,111.12 : x
  2. Step 2: Convert to fraction form
    38,878.12/53,651.68 = 22,111.12/x
  3. Step 3: Cross multiply
    38,878.12x = 53,651.68 × 22,111.12
  4. Step 4: Simplify right side
    38,878.12x = 1,186,298,734.68
  5. Step 5: Solve for x
    x = 1,186,298,734.68/38,878.12
  6. Step 6: Final answer
    x = 30,513.27

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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.