Home / 30,175.68-45,337.32-28,497.15

Finding the Fourth Proportional to 30,175.68, 45,337.32 and 28,497.15

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Solution

The fourth proportional to 30,175.68, 45,337.32 and 28,497.15 is: 42,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,175.68 : 45,337.32 = 28,497.15 : x
  2. Step 2: Convert to fraction form
    30,175.68/45,337.32 = 28,497.15/x
  3. Step 3: Cross multiply
    30,175.68x = 45,337.32 × 28,497.15
  4. Step 4: Simplify right side
    30,175.68x = 1,291,984,408.64
  5. Step 5: Solve for x
    x = 1,291,984,408.64/30,175.68
  6. Step 6: Final answer
    x = 42,815.42

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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.