Home / 22,236.98-30,686.96-12,165.40

Finding the Fourth Proportional to 22,236.98, 30,686.96 and 12,165.40

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Solution

The fourth proportional to 22,236.98, 30,686.96 and 12,165.40 is: 16,788.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,236.98 : 30,686.96 = 12,165.40 : x
  2. Step 2: Convert to fraction form
    22,236.98/30,686.96 = 12,165.40/x
  3. Step 3: Cross multiply
    22,236.98x = 30,686.96 × 12,165.40
  4. Step 4: Simplify right side
    22,236.98x = 373,319,214.05
  5. Step 5: Solve for x
    x = 373,319,214.05/22,236.98
  6. Step 6: Final answer
    x = 16,788.21

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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.