Home / 30,415.42-41,972.86-16,986.91

Finding the Fourth Proportional to 30,415.42, 41,972.86 and 16,986.91

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Solution

The fourth proportional to 30,415.42, 41,972.86 and 16,986.91 is: 23,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.42 : 41,972.86 = 16,986.91 : x
  2. Step 2: Convert to fraction form
    30,415.42/41,972.86 = 16,986.91/x
  3. Step 3: Cross multiply
    30,415.42x = 41,972.86 × 16,986.91
  4. Step 4: Simplify right side
    30,415.42x = 712,989,195.26
  5. Step 5: Solve for x
    x = 712,989,195.26/30,415.42
  6. Step 6: Final answer
    x = 23,441.70

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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.