Home / 30,975.09-46,347.81-18,501.90

Finding the Fourth Proportional to 30,975.09, 46,347.81 and 18,501.90

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Solution

The fourth proportional to 30,975.09, 46,347.81 and 18,501.90 is: 27,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.09 : 46,347.81 = 18,501.90 : x
  2. Step 2: Convert to fraction form
    30,975.09/46,347.81 = 18,501.90/x
  3. Step 3: Cross multiply
    30,975.09x = 46,347.81 × 18,501.90
  4. Step 4: Simplify right side
    30,975.09x = 857,522,545.84
  5. Step 5: Solve for x
    x = 857,522,545.84/30,975.09
  6. Step 6: Final answer
    x = 27,684.26

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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.