Home / 30,395.86-41,948.40-16,969.75

Finding the Fourth Proportional to 30,395.86, 41,948.40 and 16,969.75

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Solution

The fourth proportional to 30,395.86, 41,948.40 and 16,969.75 is: 23,419.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.86 : 41,948.40 = 16,969.75 : x
  2. Step 2: Convert to fraction form
    30,395.86/41,948.40 = 16,969.75/x
  3. Step 3: Cross multiply
    30,395.86x = 41,948.40 × 16,969.75
  4. Step 4: Simplify right side
    30,395.86x = 711,853,860.90
  5. Step 5: Solve for x
    x = 711,853,860.90/30,395.86
  6. Step 6: Final answer
    x = 23,419.43

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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.