Home / 31,018.40-46,527.60-18,576.80

Finding the Fourth Proportional to 31,018.40, 46,527.60 and 18,576.80

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Solution

The fourth proportional to 31,018.40, 46,527.60 and 18,576.80 is: 27,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,018.40 : 46,527.60 = 18,576.80 : x
  2. Step 2: Convert to fraction form
    31,018.40/46,527.60 = 18,576.80/x
  3. Step 3: Cross multiply
    31,018.40x = 46,527.60 × 18,576.80
  4. Step 4: Simplify right side
    31,018.40x = 864,333,919.68
  5. Step 5: Solve for x
    x = 864,333,919.68/31,018.40
  6. Step 6: Final answer
    x = 27,865.20

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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.