Home / 38,919.83-53,722.05-28,845.05

Finding the Fourth Proportional to 38,919.83, 53,722.05 and 28,845.05

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Solution

The fourth proportional to 38,919.83, 53,722.05 and 28,845.05 is: 39,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,919.83 : 53,722.05 = 28,845.05 : x
  2. Step 2: Convert to fraction form
    38,919.83/53,722.05 = 28,845.05/x
  3. Step 3: Cross multiply
    38,919.83x = 53,722.05 × 28,845.05
  4. Step 4: Simplify right side
    38,919.83x = 1,549,615,218.35
  5. Step 5: Solve for x
    x = 1,549,615,218.35/38,919.83
  6. Step 6: Final answer
    x = 39,815.57

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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.