Home / 30,430.88-45,608.64-17,243.28

Finding the Fourth Proportional to 30,430.88, 45,608.64 and 17,243.28

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Solution

The fourth proportional to 30,430.88, 45,608.64 and 17,243.28 is: 25,843.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.88 : 45,608.64 = 17,243.28 : x
  2. Step 2: Convert to fraction form
    30,430.88/45,608.64 = 17,243.28/x
  3. Step 3: Cross multiply
    30,430.88x = 45,608.64 × 17,243.28
  4. Step 4: Simplify right side
    30,430.88x = 786,442,549.94
  5. Step 5: Solve for x
    x = 786,442,549.94/30,430.88
  6. Step 6: Final answer
    x = 25,843.57

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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.