Home / 22,158.23-30,577.80-12,086.90

Finding the Fourth Proportional to 22,158.23, 30,577.80 and 12,086.90

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Solution

The fourth proportional to 22,158.23, 30,577.80 and 12,086.90 is: 16,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,158.23 : 30,577.80 = 12,086.90 : x
  2. Step 2: Convert to fraction form
    22,158.23/30,577.80 = 12,086.90/x
  3. Step 3: Cross multiply
    22,158.23x = 30,577.80 × 12,086.90
  4. Step 4: Simplify right side
    22,158.23x = 369,590,810.82
  5. Step 5: Solve for x
    x = 369,590,810.82/22,158.23
  6. Step 6: Final answer
    x = 16,679.62

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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.