Home / 30,430.62-45,647.58-9,385.16

Finding the Fourth Proportional to 30,430.62, 45,647.58 and 9,385.16

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Solution

The fourth proportional to 30,430.62, 45,647.58 and 9,385.16 is: 14,078.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.62 : 45,647.58 = 9,385.16 : x
  2. Step 2: Convert to fraction form
    30,430.62/45,647.58 = 9,385.16/x
  3. Step 3: Cross multiply
    30,430.62x = 45,647.58 × 9,385.16
  4. Step 4: Simplify right side
    30,430.62x = 428,409,613.67
  5. Step 5: Solve for x
    x = 428,409,613.67/30,430.62
  6. Step 6: Final answer
    x = 14,078.24

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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.