Home / 22,570.12-31,142.32-14,181.76

Finding the Fourth Proportional to 22,570.12, 31,142.32 and 14,181.76

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Solution

The fourth proportional to 22,570.12, 31,142.32 and 14,181.76 is: 19,568.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,570.12 : 31,142.32 = 14,181.76 : x
  2. Step 2: Convert to fraction form
    22,570.12/31,142.32 = 14,181.76/x
  3. Step 3: Cross multiply
    22,570.12x = 31,142.32 × 14,181.76
  4. Step 4: Simplify right side
    22,570.12x = 441,652,908.08
  5. Step 5: Solve for x
    x = 441,652,908.08/22,570.12
  6. Step 6: Final answer
    x = 19,568.04

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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.