Home / 38,808.36-53,554.32-21,812.22

Finding the Fourth Proportional to 38,808.36, 53,554.32 and 21,812.22

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Solution

The fourth proportional to 38,808.36, 53,554.32 and 21,812.22 is: 30,100.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,808.36 : 53,554.32 = 21,812.22 : x
  2. Step 2: Convert to fraction form
    38,808.36/53,554.32 = 21,812.22/x
  3. Step 3: Cross multiply
    38,808.36x = 53,554.32 × 21,812.22
  4. Step 4: Simplify right side
    38,808.36x = 1,168,138,609.79
  5. Step 5: Solve for x
    x = 1,168,138,609.79/38,808.36
  6. Step 6: Final answer
    x = 30,100.18

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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.