Home / 38,830.57-53,550.64-28,784.03

Finding the Fourth Proportional to 38,830.57, 53,550.64 and 28,784.03

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Solution

The fourth proportional to 38,830.57, 53,550.64 and 28,784.03 is: 39,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,830.57 : 53,550.64 = 28,784.03 : x
  2. Step 2: Convert to fraction form
    38,830.57/53,550.64 = 28,784.03/x
  3. Step 3: Cross multiply
    38,830.57x = 53,550.64 × 28,784.03
  4. Step 4: Simplify right side
    38,830.57x = 1,541,403,228.28
  5. Step 5: Solve for x
    x = 1,541,403,228.28/38,830.57
  6. Step 6: Final answer
    x = 39,695.61

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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.