Home / 22,185.90-33,225.77-12,806.40

Finding the Fourth Proportional to 22,185.90, 33,225.77 and 12,806.40

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Solution

The fourth proportional to 22,185.90, 33,225.77 and 12,806.40 is: 19,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,185.90 : 33,225.77 = 12,806.40 : x
  2. Step 2: Convert to fraction form
    22,185.90/33,225.77 = 12,806.40/x
  3. Step 3: Cross multiply
    22,185.90x = 33,225.77 × 12,806.40
  4. Step 4: Simplify right side
    22,185.90x = 425,502,436.90
  5. Step 5: Solve for x
    x = 425,502,436.90/22,185.90
  6. Step 6: Final answer
    x = 19,178.96

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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.