Home / 30,980.31-46,212.41-27,990.60

Finding the Fourth Proportional to 30,980.31, 46,212.41 and 27,990.60

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Solution

The fourth proportional to 30,980.31, 46,212.41 and 27,990.60 is: 41,752.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,980.31 : 46,212.41 = 27,990.60 : x
  2. Step 2: Convert to fraction form
    30,980.31/46,212.41 = 27,990.60/x
  3. Step 3: Cross multiply
    30,980.31x = 46,212.41 × 27,990.60
  4. Step 4: Simplify right side
    30,980.31x = 1,293,513,048.36
  5. Step 5: Solve for x
    x = 1,293,513,048.36/30,980.31
  6. Step 6: Final answer
    x = 41,752.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.