Home / 19,042.51-28,563.47-5,191.51

Finding the Fourth Proportional to 19,042.51, 28,563.47 and 5,191.51

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Solution

The fourth proportional to 19,042.51, 28,563.47 and 5,191.51 is: 7,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.51 : 28,563.47 = 5,191.51 : x
  2. Step 2: Convert to fraction form
    19,042.51/28,563.47 = 5,191.51/x
  3. Step 3: Cross multiply
    19,042.51x = 28,563.47 × 5,191.51
  4. Step 4: Simplify right side
    19,042.51x = 148,287,514.18
  5. Step 5: Solve for x
    x = 148,287,514.18/19,042.51
  6. Step 6: Final answer
    x = 7,787.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.