Home / 22,187.40-33,263.43-12,816.78

Finding the Fourth Proportional to 22,187.40, 33,263.43 and 12,816.78

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Solution

The fourth proportional to 22,187.40, 33,263.43 and 12,816.78 is: 19,214.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.40 : 33,263.43 = 12,816.78 : x
  2. Step 2: Convert to fraction form
    22,187.40/33,263.43 = 12,816.78/x
  3. Step 3: Cross multiply
    22,187.40x = 33,263.43 × 12,816.78
  4. Step 4: Simplify right side
    22,187.40x = 426,330,064.36
  5. Step 5: Solve for x
    x = 426,330,064.36/22,187.40
  6. Step 6: Final answer
    x = 19,214.96

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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.