Home / 20,150.32-27,810.74-16,787.80

Finding the Fourth Proportional to 20,150.32, 27,810.74 and 16,787.80

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Solution

The fourth proportional to 20,150.32, 27,810.74 and 16,787.80 is: 23,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.32 : 27,810.74 = 16,787.80 : x
  2. Step 2: Convert to fraction form
    20,150.32/27,810.74 = 16,787.80/x
  3. Step 3: Cross multiply
    20,150.32x = 27,810.74 × 16,787.80
  4. Step 4: Simplify right side
    20,150.32x = 466,881,140.97
  5. Step 5: Solve for x
    x = 466,881,140.97/20,150.32
  6. Step 6: Final answer
    x = 23,169.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.