Home / 31,206.42-43,087.41-19,286.10

Finding the Fourth Proportional to 31,206.42, 43,087.41 and 19,286.10

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Solution

The fourth proportional to 31,206.42, 43,087.41 and 19,286.10 is: 26,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,206.42 : 43,087.41 = 19,286.10 : x
  2. Step 2: Convert to fraction form
    31,206.42/43,087.41 = 19,286.10/x
  3. Step 3: Cross multiply
    31,206.42x = 43,087.41 × 19,286.10
  4. Step 4: Simplify right side
    31,206.42x = 830,988,098.00
  5. Step 5: Solve for x
    x = 830,988,098.00/31,206.42
  6. Step 6: Final answer
    x = 26,628.75

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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.