Home / 30,608.68-42,239.46-18,031.24

Finding the Fourth Proportional to 30,608.68, 42,239.46 and 18,031.24

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Solution

The fourth proportional to 30,608.68, 42,239.46 and 18,031.24 is: 24,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.68 : 42,239.46 = 18,031.24 : x
  2. Step 2: Convert to fraction form
    30,608.68/42,239.46 = 18,031.24/x
  3. Step 3: Cross multiply
    30,608.68x = 42,239.46 × 18,031.24
  4. Step 4: Simplify right side
    30,608.68x = 761,629,840.73
  5. Step 5: Solve for x
    x = 761,629,840.73/30,608.68
  6. Step 6: Final answer
    x = 24,882.81

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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.