Home / 30,971.43-46,437.98-21,080.70

Finding the Fourth Proportional to 30,971.43, 46,437.98 and 21,080.70

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Solution

The fourth proportional to 30,971.43, 46,437.98 and 21,080.70 is: 31,608.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.43 : 46,437.98 = 21,080.70 : x
  2. Step 2: Convert to fraction form
    30,971.43/46,437.98 = 21,080.70/x
  3. Step 3: Cross multiply
    30,971.43x = 46,437.98 × 21,080.70
  4. Step 4: Simplify right side
    30,971.43x = 978,945,019.58
  5. Step 5: Solve for x
    x = 978,945,019.58/30,971.43
  6. Step 6: Final answer
    x = 31,608.00

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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.