Home / 19,970.28-27,550.44-12,007.80

Finding the Fourth Proportional to 19,970.28, 27,550.44 and 12,007.80

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Solution

The fourth proportional to 19,970.28, 27,550.44 and 12,007.80 is: 16,565.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,970.28 : 27,550.44 = 12,007.80 : x
  2. Step 2: Convert to fraction form
    19,970.28/27,550.44 = 12,007.80/x
  3. Step 3: Cross multiply
    19,970.28x = 27,550.44 × 12,007.80
  4. Step 4: Simplify right side
    19,970.28x = 330,820,173.43
  5. Step 5: Solve for x
    x = 330,820,173.43/19,970.28
  6. Step 6: Final answer
    x = 16,565.63

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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.