Home / 38,619.06-53,257.95-30,687.54

Finding the Fourth Proportional to 38,619.06, 53,257.95 and 30,687.54

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Solution

The fourth proportional to 38,619.06, 53,257.95 and 30,687.54 is: 42,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,619.06 : 53,257.95 = 30,687.54 : x
  2. Step 2: Convert to fraction form
    38,619.06/53,257.95 = 30,687.54/x
  3. Step 3: Cross multiply
    38,619.06x = 53,257.95 × 30,687.54
  4. Step 4: Simplify right side
    38,619.06x = 1,634,355,470.94
  5. Step 5: Solve for x
    x = 1,634,355,470.94/38,619.06
  6. Step 6: Final answer
    x = 42,319.92

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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.