Home / 30,921.16-46,381.86-7,547.61

Finding the Fourth Proportional to 30,921.16, 46,381.86 and 7,547.61

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Solution

The fourth proportional to 30,921.16, 46,381.86 and 7,547.61 is: 11,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,921.16 : 46,381.86 = 7,547.61 : x
  2. Step 2: Convert to fraction form
    30,921.16/46,381.86 = 7,547.61/x
  3. Step 3: Cross multiply
    30,921.16x = 46,381.86 × 7,547.61
  4. Step 4: Simplify right side
    30,921.16x = 350,072,190.35
  5. Step 5: Solve for x
    x = 350,072,190.35/30,921.16
  6. Step 6: Final answer
    x = 11,321.44

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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.