Home / 27,980.10-41,970.30-11,340.48

Finding the Fourth Proportional to 27,980.10, 41,970.30 and 11,340.48

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Solution

The fourth proportional to 27,980.10, 41,970.30 and 11,340.48 is: 17,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.10 : 41,970.30 = 11,340.48 : x
  2. Step 2: Convert to fraction form
    27,980.10/41,970.30 = 11,340.48/x
  3. Step 3: Cross multiply
    27,980.10x = 41,970.30 × 11,340.48
  4. Step 4: Simplify right side
    27,980.10x = 475,963,347.74
  5. Step 5: Solve for x
    x = 475,963,347.74/27,980.10
  6. Step 6: Final answer
    x = 17,010.78

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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.