Home / 30,203.69-41,664.30-28,065.47

Finding the Fourth Proportional to 30,203.69, 41,664.30 and 28,065.47

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Solution

The fourth proportional to 30,203.69, 41,664.30 and 28,065.47 is: 38,714.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,203.69 : 41,664.30 = 28,065.47 : x
  2. Step 2: Convert to fraction form
    30,203.69/41,664.30 = 28,065.47/x
  3. Step 3: Cross multiply
    30,203.69x = 41,664.30 × 28,065.47
  4. Step 4: Simplify right side
    30,203.69x = 1,169,328,161.45
  5. Step 5: Solve for x
    x = 1,169,328,161.45/30,203.69
  6. Step 6: Final answer
    x = 38,714.75

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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.