Home / 30,235.55-45,353.43-9,175.78

Finding the Fourth Proportional to 30,235.55, 45,353.43 and 9,175.78

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Solution

The fourth proportional to 30,235.55, 45,353.43 and 9,175.78 is: 13,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,235.55 : 45,353.43 = 9,175.78 : x
  2. Step 2: Convert to fraction form
    30,235.55/45,353.43 = 9,175.78/x
  3. Step 3: Cross multiply
    30,235.55x = 45,353.43 × 9,175.78
  4. Step 4: Simplify right side
    30,235.55x = 416,153,095.93
  5. Step 5: Solve for x
    x = 416,153,095.93/30,235.55
  6. Step 6: Final answer
    x = 13,763.70

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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.