Home / 30,270.13-41,768.80-16,838.71

Finding the Fourth Proportional to 30,270.13, 41,768.80 and 16,838.71

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Solution

The fourth proportional to 30,270.13, 41,768.80 and 16,838.71 is: 23,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,270.13 : 41,768.80 = 16,838.71 : x
  2. Step 2: Convert to fraction form
    30,270.13/41,768.80 = 16,838.71/x
  3. Step 3: Cross multiply
    30,270.13x = 41,768.80 × 16,838.71
  4. Step 4: Simplify right side
    30,270.13x = 703,332,710.25
  5. Step 5: Solve for x
    x = 703,332,710.25/30,270.13
  6. Step 6: Final answer
    x = 23,235.21

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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.