Home / 38,787.41-53,523.47-21,790.73

Finding the Fourth Proportional to 38,787.41, 53,523.47 and 21,790.73

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Solution

The fourth proportional to 38,787.41, 53,523.47 and 21,790.73 is: 30,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.41 : 53,523.47 = 21,790.73 : x
  2. Step 2: Convert to fraction form
    38,787.41/53,523.47 = 21,790.73/x
  3. Step 3: Cross multiply
    38,787.41x = 53,523.47 × 21,790.73
  4. Step 4: Simplify right side
    38,787.41x = 1,166,315,106.86
  5. Step 5: Solve for x
    x = 1,166,315,106.86/38,787.41
  6. Step 6: Final answer
    x = 30,069.43

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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.