Home / 38,786.52-53,521.51-21,792.72

Finding the Fourth Proportional to 38,786.52, 53,521.51 and 21,792.72

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Solution

The fourth proportional to 38,786.52, 53,521.51 and 21,792.72 is: 30,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,786.52 : 53,521.51 = 21,792.72 : x
  2. Step 2: Convert to fraction form
    38,786.52/53,521.51 = 21,792.72/x
  3. Step 3: Cross multiply
    38,786.52x = 53,521.51 × 21,792.72
  4. Step 4: Simplify right side
    38,786.52x = 1,166,379,281.41
  5. Step 5: Solve for x
    x = 1,166,379,281.41/38,786.52
  6. Step 6: Final answer
    x = 30,071.77

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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.