Home / 30,865.10-46,218.56-21,364.25

Finding the Fourth Proportional to 30,865.10, 46,218.56 and 21,364.25

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Solution

The fourth proportional to 30,865.10, 46,218.56 and 21,364.25 is: 31,991.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865.10 : 46,218.56 = 21,364.25 : x
  2. Step 2: Convert to fraction form
    30,865.10/46,218.56 = 21,364.25/x
  3. Step 3: Cross multiply
    30,865.10x = 46,218.56 × 21,364.25
  4. Step 4: Simplify right side
    30,865.10x = 987,424,532.57
  5. Step 5: Solve for x
    x = 987,424,532.57/30,865.10
  6. Step 6: Final answer
    x = 31,991.62

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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.