Home / 38,971.28-53,783.88-22,209.68

Finding the Fourth Proportional to 38,971.28, 53,783.88 and 22,209.68

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Solution

The fourth proportional to 38,971.28, 53,783.88 and 22,209.68 is: 30,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,971.28 : 53,783.88 = 22,209.68 : x
  2. Step 2: Convert to fraction form
    38,971.28/53,783.88 = 22,209.68/x
  3. Step 3: Cross multiply
    38,971.28x = 53,783.88 × 22,209.68
  4. Step 4: Simplify right side
    38,971.28x = 1,194,522,763.96
  5. Step 5: Solve for x
    x = 1,194,522,763.96/38,971.28
  6. Step 6: Final answer
    x = 30,651.36

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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.