Home / 30,197.68-45,370.36-28,519.12

Finding the Fourth Proportional to 30,197.68, 45,370.36 and 28,519.12

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Solution

The fourth proportional to 30,197.68, 45,370.36 and 28,519.12 is: 42,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.68 : 45,370.36 = 28,519.12 : x
  2. Step 2: Convert to fraction form
    30,197.68/45,370.36 = 28,519.12/x
  3. Step 3: Cross multiply
    30,197.68x = 45,370.36 × 28,519.12
  4. Step 4: Simplify right side
    30,197.68x = 1,293,922,741.28
  5. Step 5: Solve for x
    x = 1,293,922,741.28/30,197.68
  6. Step 6: Final answer
    x = 42,848.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.