Home / 22,159.09-30,579.98-12,087.90

Finding the Fourth Proportional to 22,159.09, 30,579.98 and 12,087.90

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Solution

The fourth proportional to 22,159.09, 30,579.98 and 12,087.90 is: 16,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.09 : 30,579.98 = 12,087.90 : x
  2. Step 2: Convert to fraction form
    22,159.09/30,579.98 = 12,087.90/x
  3. Step 3: Cross multiply
    22,159.09x = 30,579.98 × 12,087.90
  4. Step 4: Simplify right side
    22,159.09x = 369,647,679.80
  5. Step 5: Solve for x
    x = 369,647,679.80/22,159.09
  6. Step 6: Final answer
    x = 16,681.54

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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.