Home / 31,243.40-46,813.26-21,989.96

Finding the Fourth Proportional to 31,243.40, 46,813.26 and 21,989.96

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Solution

The fourth proportional to 31,243.40, 46,813.26 and 21,989.96 is: 32,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,243.40 : 46,813.26 = 21,989.96 : x
  2. Step 2: Convert to fraction form
    31,243.40/46,813.26 = 21,989.96/x
  3. Step 3: Cross multiply
    31,243.40x = 46,813.26 × 21,989.96
  4. Step 4: Simplify right side
    31,243.40x = 1,029,421,714.87
  5. Step 5: Solve for x
    x = 1,029,421,714.87/31,243.40
  6. Step 6: Final answer
    x = 32,948.45

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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.