Home / 30,415.62-41,950.23-18,303.48

Finding the Fourth Proportional to 30,415.62, 41,950.23 and 18,303.48

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Solution

The fourth proportional to 30,415.62, 41,950.23 and 18,303.48 is: 25,244.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.62 : 41,950.23 = 18,303.48 : x
  2. Step 2: Convert to fraction form
    30,415.62/41,950.23 = 18,303.48/x
  3. Step 3: Cross multiply
    30,415.62x = 41,950.23 × 18,303.48
  4. Step 4: Simplify right side
    30,415.62x = 767,835,195.80
  5. Step 5: Solve for x
    x = 767,835,195.80/30,415.62
  6. Step 6: Final answer
    x = 25,244.77

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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.