Home / 39,128.68-53,979.64-23,207.32

Finding the Fourth Proportional to 39,128.68, 53,979.64 and 23,207.32

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Solution

The fourth proportional to 39,128.68, 53,979.64 and 23,207.32 is: 32,015.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.68 : 53,979.64 = 23,207.32 : x
  2. Step 2: Convert to fraction form
    39,128.68/53,979.64 = 23,207.32/x
  3. Step 3: Cross multiply
    39,128.68x = 53,979.64 × 23,207.32
  4. Step 4: Simplify right side
    39,128.68x = 1,252,722,778.96
  5. Step 5: Solve for x
    x = 1,252,722,778.96/39,128.68
  6. Step 6: Final answer
    x = 32,015.46

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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.