Home / 22,360.47-30,855.44-12,288.80

Finding the Fourth Proportional to 22,360.47, 30,855.44 and 12,288.80

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Solution

The fourth proportional to 22,360.47, 30,855.44 and 12,288.80 is: 16,957.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.47 : 30,855.44 = 12,288.80 : x
  2. Step 2: Convert to fraction form
    22,360.47/30,855.44 = 12,288.80/x
  3. Step 3: Cross multiply
    22,360.47x = 30,855.44 × 12,288.80
  4. Step 4: Simplify right side
    22,360.47x = 379,176,331.07
  5. Step 5: Solve for x
    x = 379,176,331.07/22,360.47
  6. Step 6: Final answer
    x = 16,957.44

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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.