Home / 30,180-41,648.40-19,569.71

Finding the Fourth Proportional to 30,180, 41,648.40 and 19,569.71

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Solution

The fourth proportional to 30,180, 41,648.40 and 19,569.71 is: 27,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,180 : 41,648.40 = 19,569.71 : x
  2. Step 2: Convert to fraction form
    30,180/41,648.40 = 19,569.71/x
  3. Step 3: Cross multiply
    30,180x = 41,648.40 × 19,569.71
  4. Step 4: Simplify right side
    30,180x = 815,047,214.09
  5. Step 5: Solve for x
    x = 815,047,214.09/30,180
  6. Step 6: Final answer
    x = 27,006.20

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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.