Home / 30,378.78-41,619.15-29,242.65

Finding the Fourth Proportional to 30,378.78, 41,619.15 and 29,242.65

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Solution

The fourth proportional to 30,378.78, 41,619.15 and 29,242.65 is: 40,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378.78 : 41,619.15 = 29,242.65 : x
  2. Step 2: Convert to fraction form
    30,378.78/41,619.15 = 29,242.65/x
  3. Step 3: Cross multiply
    30,378.78x = 41,619.15 × 29,242.65
  4. Step 4: Simplify right side
    30,378.78x = 1,217,054,236.75
  5. Step 5: Solve for x
    x = 1,217,054,236.75/30,378.78
  6. Step 6: Final answer
    x = 40,062.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.