Home / 38,982.32-58,477.12-12,680.00

Finding the Fourth Proportional to 38,982.32, 58,477.12 and 12,680.00

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Solution

The fourth proportional to 38,982.32, 58,477.12 and 12,680.00 is: 19,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,982.32 : 58,477.12 = 12,680.00 : x
  2. Step 2: Convert to fraction form
    38,982.32/58,477.12 = 12,680.00/x
  3. Step 3: Cross multiply
    38,982.32x = 58,477.12 × 12,680.00
  4. Step 4: Simplify right side
    38,982.32x = 741,489,525.81
  5. Step 5: Solve for x
    x = 741,489,525.81/38,982.32
  6. Step 6: Final answer
    x = 19,021.18

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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.