Home / 30,217.20-41,705.70-19,308.36

Finding the Fourth Proportional to 30,217.20, 41,705.70 and 19,308.36

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Solution

The fourth proportional to 30,217.20, 41,705.70 and 19,308.36 is: 26,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,217.20 : 41,705.70 = 19,308.36 : x
  2. Step 2: Convert to fraction form
    30,217.20/41,705.70 = 19,308.36/x
  3. Step 3: Cross multiply
    30,217.20x = 41,705.70 × 19,308.36
  4. Step 4: Simplify right side
    30,217.20x = 805,268,669.65
  5. Step 5: Solve for x
    x = 805,268,669.65/30,217.20
  6. Step 6: Final answer
    x = 26,649.35

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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.