Home / 31,318.06-46,979.30-12,598.21

Finding the Fourth Proportional to 31,318.06, 46,979.30 and 12,598.21

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Solution

The fourth proportional to 31,318.06, 46,979.30 and 12,598.21 is: 18,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.06 : 46,979.30 = 12,598.21 : x
  2. Step 2: Convert to fraction form
    31,318.06/46,979.30 = 12,598.21/x
  3. Step 3: Cross multiply
    31,318.06x = 46,979.30 × 12,598.21
  4. Step 4: Simplify right side
    31,318.06x = 591,855,087.05
  5. Step 5: Solve for x
    x = 591,855,087.05/31,318.06
  6. Step 6: Final answer
    x = 18,898.20

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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.