Home / 38,799.20-53,540.87-21,804.12

Finding the Fourth Proportional to 38,799.20, 53,540.87 and 21,804.12

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Solution

The fourth proportional to 38,799.20, 53,540.87 and 21,804.12 is: 30,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,799.20 : 53,540.87 = 21,804.12 : x
  2. Step 2: Convert to fraction form
    38,799.20/53,540.87 = 21,804.12/x
  3. Step 3: Cross multiply
    38,799.20x = 53,540.87 × 21,804.12
  4. Step 4: Simplify right side
    38,799.20x = 1,167,411,445.36
  5. Step 5: Solve for x
    x = 1,167,411,445.36/38,799.20
  6. Step 6: Final answer
    x = 30,088.54

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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.