Home / 30,991.48-46,468.33-13,212.18

Finding the Fourth Proportional to 30,991.48, 46,468.33 and 13,212.18

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Solution

The fourth proportional to 30,991.48, 46,468.33 and 13,212.18 is: 19,810.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,991.48 : 46,468.33 = 13,212.18 : x
  2. Step 2: Convert to fraction form
    30,991.48/46,468.33 = 13,212.18/x
  3. Step 3: Cross multiply
    30,991.48x = 46,468.33 × 13,212.18
  4. Step 4: Simplify right side
    30,991.48x = 613,947,907.23
  5. Step 5: Solve for x
    x = 613,947,907.23/30,991.48
  6. Step 6: Final answer
    x = 19,810.22

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1.5x scale

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.