Home / 38,986.64-58,466.16-12,686.48

Finding the Fourth Proportional to 38,986.64, 58,466.16 and 12,686.48

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Solution

The fourth proportional to 38,986.64, 58,466.16 and 12,686.48 is: 19,025.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986.64 : 58,466.16 = 12,686.48 : x
  2. Step 2: Convert to fraction form
    38,986.64/58,466.16 = 12,686.48/x
  3. Step 3: Cross multiply
    38,986.64x = 58,466.16 × 12,686.48
  4. Step 4: Simplify right side
    38,986.64x = 741,729,769.52
  5. Step 5: Solve for x
    x = 741,729,769.52/38,986.64
  6. Step 6: Final answer
    x = 19,025.23

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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.