Home / 30,921.35-46,382.13-7,547.79

Finding the Fourth Proportional to 30,921.35, 46,382.13 and 7,547.79

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Solution

The fourth proportional to 30,921.35, 46,382.13 and 7,547.79 is: 11,321.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921.35 : 46,382.13 = 7,547.79 : x
  2. Step 2: Convert to fraction form
    30,921.35/46,382.13 = 7,547.79/x
  3. Step 3: Cross multiply
    30,921.35x = 46,382.13 × 7,547.79
  4. Step 4: Simplify right side
    30,921.35x = 350,082,576.99
  5. Step 5: Solve for x
    x = 350,082,576.99/30,921.35
  6. Step 6: Final answer
    x = 11,321.71

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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.