Home / 21,963.15-32,966.60-12,107.07

Finding the Fourth Proportional to 21,963.15, 32,966.60 and 12,107.07

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Solution

The fourth proportional to 21,963.15, 32,966.60 and 12,107.07 is: 18,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.15 : 32,966.60 = 12,107.07 : x
  2. Step 2: Convert to fraction form
    21,963.15/32,966.60 = 12,107.07/x
  3. Step 3: Cross multiply
    21,963.15x = 32,966.60 × 12,107.07
  4. Step 4: Simplify right side
    21,963.15x = 399,128,873.33
  5. Step 5: Solve for x
    x = 399,128,873.33/21,963.15
  6. Step 6: Final answer
    x = 18,172.66

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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.