Home / 30,239.52-41,720.58-18,298.32

Finding the Fourth Proportional to 30,239.52, 41,720.58 and 18,298.32

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Solution

The fourth proportional to 30,239.52, 41,720.58 and 18,298.32 is: 25,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.52 : 41,720.58 = 18,298.32 : x
  2. Step 2: Convert to fraction form
    30,239.52/41,720.58 = 18,298.32/x
  3. Step 3: Cross multiply
    30,239.52x = 41,720.58 × 18,298.32
  4. Step 4: Simplify right side
    30,239.52x = 763,416,523.43
  5. Step 5: Solve for x
    x = 763,416,523.43/30,239.52
  6. Step 6: Final answer
    x = 25,245.66

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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.