Home / 31,619.43-43,639.56-19,526.94

Finding the Fourth Proportional to 31,619.43, 43,639.56 and 19,526.94

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Solution

The fourth proportional to 31,619.43, 43,639.56 and 19,526.94 is: 26,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.43 : 43,639.56 = 19,526.94 : x
  2. Step 2: Convert to fraction form
    31,619.43/43,639.56 = 19,526.94/x
  3. Step 3: Cross multiply
    31,619.43x = 43,639.56 × 19,526.94
  4. Step 4: Simplify right side
    31,619.43x = 852,147,069.75
  5. Step 5: Solve for x
    x = 852,147,069.75/31,619.43
  6. Step 6: Final answer
    x = 26,950.11

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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.