Home / 22,226.40-33,328.80-12,355.20

Finding the Fourth Proportional to 22,226.40, 33,328.80 and 12,355.20

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Solution

The fourth proportional to 22,226.40, 33,328.80 and 12,355.20 is: 18,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,226.40 : 33,328.80 = 12,355.20 : x
  2. Step 2: Convert to fraction form
    22,226.40/33,328.80 = 12,355.20/x
  3. Step 3: Cross multiply
    22,226.40x = 33,328.80 × 12,355.20
  4. Step 4: Simplify right side
    22,226.40x = 411,783,989.76
  5. Step 5: Solve for x
    x = 411,783,989.76/22,226.40
  6. Step 6: Final answer
    x = 18,526.80

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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.