Home / 30,393.90-41,945.12-16,965.26

Finding the Fourth Proportional to 30,393.90, 41,945.12 and 16,965.26

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Solution

The fourth proportional to 30,393.90, 41,945.12 and 16,965.26 is: 23,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,393.90 : 41,945.12 = 16,965.26 : x
  2. Step 2: Convert to fraction form
    30,393.90/41,945.12 = 16,965.26/x
  3. Step 3: Cross multiply
    30,393.90x = 41,945.12 × 16,965.26
  4. Step 4: Simplify right side
    30,393.90x = 711,609,981.12
  5. Step 5: Solve for x
    x = 711,609,981.12/30,393.90
  6. Step 6: Final answer
    x = 23,412.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.