Home / 22,240.80-33,312.60-19,778.40

Finding the Fourth Proportional to 22,240.80, 33,312.60 and 19,778.40

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Solution

The fourth proportional to 22,240.80, 33,312.60 and 19,778.40 is: 29,624.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,240.80 : 33,312.60 = 19,778.40 : x
  2. Step 2: Convert to fraction form
    22,240.80/33,312.60 = 19,778.40/x
  3. Step 3: Cross multiply
    22,240.80x = 33,312.60 × 19,778.40
  4. Step 4: Simplify right side
    22,240.80x = 658,869,927.84
  5. Step 5: Solve for x
    x = 658,869,927.84/22,240.80
  6. Step 6: Final answer
    x = 29,624.38

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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.