Home / 28,112.15-38,826.65-19,144.08

Finding the Fourth Proportional to 28,112.15, 38,826.65 and 19,144.08

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Solution

The fourth proportional to 28,112.15, 38,826.65 and 19,144.08 is: 26,440.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,112.15 : 38,826.65 = 19,144.08 : x
  2. Step 2: Convert to fraction form
    28,112.15/38,826.65 = 19,144.08/x
  3. Step 3: Cross multiply
    28,112.15x = 38,826.65 × 19,144.08
  4. Step 4: Simplify right side
    28,112.15x = 743,300,541.59
  5. Step 5: Solve for x
    x = 743,300,541.59/28,112.15
  6. Step 6: Final answer
    x = 26,440.54

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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.