Home / 38,782.56-53,517.14-21,785.93

Finding the Fourth Proportional to 38,782.56, 53,517.14 and 21,785.93

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Solution

The fourth proportional to 38,782.56, 53,517.14 and 21,785.93 is: 30,063.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,782.56 : 53,517.14 = 21,785.93 : x
  2. Step 2: Convert to fraction form
    38,782.56/53,517.14 = 21,785.93/x
  3. Step 3: Cross multiply
    38,782.56x = 53,517.14 × 21,785.93
  4. Step 4: Simplify right side
    38,782.56x = 1,165,920,571.71
  5. Step 5: Solve for x
    x = 1,165,920,571.71/38,782.56
  6. Step 6: Final answer
    x = 30,063.01

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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.