Home / 31,325.40-43,203.24-19,377.36

Finding the Fourth Proportional to 31,325.40, 43,203.24 and 19,377.36

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Solution

The fourth proportional to 31,325.40, 43,203.24 and 19,377.36 is: 26,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,325.40 : 43,203.24 = 19,377.36 : x
  2. Step 2: Convert to fraction form
    31,325.40/43,203.24 = 19,377.36/x
  3. Step 3: Cross multiply
    31,325.40x = 43,203.24 × 19,377.36
  4. Step 4: Simplify right side
    31,325.40x = 837,164,734.65
  5. Step 5: Solve for x
    x = 837,164,734.65/31,325.40
  6. Step 6: Final answer
    x = 26,724.79

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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.