Home / 39,104.10-53,963.73-21,199.05

Finding the Fourth Proportional to 39,104.10, 53,963.73 and 21,199.05

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Solution

The fourth proportional to 39,104.10, 53,963.73 and 21,199.05 is: 29,254.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,104.10 : 53,963.73 = 21,199.05 : x
  2. Step 2: Convert to fraction form
    39,104.10/53,963.73 = 21,199.05/x
  3. Step 3: Cross multiply
    39,104.10x = 53,963.73 × 21,199.05
  4. Step 4: Simplify right side
    39,104.10x = 1,143,979,810.46
  5. Step 5: Solve for x
    x = 1,143,979,810.46/39,104.10
  6. Step 6: Final answer
    x = 29,254.73

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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.