Home / 30,963.63-46,430.80-11,997.15

Finding the Fourth Proportional to 30,963.63, 46,430.80 and 11,997.15

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Solution

The fourth proportional to 30,963.63, 46,430.80 and 11,997.15 is: 17,990.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,963.63 : 46,430.80 = 11,997.15 : x
  2. Step 2: Convert to fraction form
    30,963.63/46,430.80 = 11,997.15/x
  3. Step 3: Cross multiply
    30,963.63x = 46,430.80 × 11,997.15
  4. Step 4: Simplify right side
    30,963.63x = 557,037,135.60
  5. Step 5: Solve for x
    x = 557,037,135.60/30,963.63
  6. Step 6: Final answer
    x = 17,990.04

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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.