Home / 30,406.31-45,609.46-9,628.19

Finding the Fourth Proportional to 30,406.31, 45,609.46 and 9,628.19

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Solution

The fourth proportional to 30,406.31, 45,609.46 and 9,628.19 is: 14,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.31 : 45,609.46 = 9,628.19 : x
  2. Step 2: Convert to fraction form
    30,406.31/45,609.46 = 9,628.19/x
  3. Step 3: Cross multiply
    30,406.31x = 45,609.46 × 9,628.19
  4. Step 4: Simplify right side
    30,406.31x = 439,136,546.68
  5. Step 5: Solve for x
    x = 439,136,546.68/30,406.31
  6. Step 6: Final answer
    x = 14,442.28

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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.