Home / 38,857.63-53,621.34-21,862.60

Finding the Fourth Proportional to 38,857.63, 53,621.34 and 21,862.60

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Solution

The fourth proportional to 38,857.63, 53,621.34 and 21,862.60 is: 30,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,857.63 : 53,621.34 = 21,862.60 : x
  2. Step 2: Convert to fraction form
    38,857.63/53,621.34 = 21,862.60/x
  3. Step 3: Cross multiply
    38,857.63x = 53,621.34 × 21,862.60
  4. Step 4: Simplify right side
    38,857.63x = 1,172,301,907.88
  5. Step 5: Solve for x
    x = 1,172,301,907.88/38,857.63
  6. Step 6: Final answer
    x = 30,169.16

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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.