Home / 38,619.98-53,283.19-21,621.73

Finding the Fourth Proportional to 38,619.98, 53,283.19 and 21,621.73

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Solution

The fourth proportional to 38,619.98, 53,283.19 and 21,621.73 is: 29,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,619.98 : 53,283.19 = 21,621.73 : x
  2. Step 2: Convert to fraction form
    38,619.98/53,283.19 = 21,621.73/x
  3. Step 3: Cross multiply
    38,619.98x = 53,283.19 × 21,621.73
  4. Step 4: Simplify right side
    38,619.98x = 1,152,074,747.72
  5. Step 5: Solve for x
    x = 1,152,074,747.72/38,619.98
  6. Step 6: Final answer
    x = 29,831.06

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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.