Home / 30,951.04-42,712.94-16,803.88

Finding the Fourth Proportional to 30,951.04, 42,712.94 and 16,803.88

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Solution

The fourth proportional to 30,951.04, 42,712.94 and 16,803.88 is: 23,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951.04 : 42,712.94 = 16,803.88 : x
  2. Step 2: Convert to fraction form
    30,951.04/42,712.94 = 16,803.88/x
  3. Step 3: Cross multiply
    30,951.04x = 42,712.94 × 16,803.88
  4. Step 4: Simplify right side
    30,951.04x = 717,743,118.21
  5. Step 5: Solve for x
    x = 717,743,118.21/30,951.04
  6. Step 6: Final answer
    x = 23,189.63

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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.