Home / 38,783.04-58,174.62-12,129.18

Finding the Fourth Proportional to 38,783.04, 58,174.62 and 12,129.18

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Solution

The fourth proportional to 38,783.04, 58,174.62 and 12,129.18 is: 18,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,783.04 : 58,174.62 = 12,129.18 : x
  2. Step 2: Convert to fraction form
    38,783.04/58,174.62 = 12,129.18/x
  3. Step 3: Cross multiply
    38,783.04x = 58,174.62 × 12,129.18
  4. Step 4: Simplify right side
    38,783.04x = 705,610,437.41
  5. Step 5: Solve for x
    x = 705,610,437.41/38,783.04
  6. Step 6: Final answer
    x = 18,193.79

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.