Home / 30,949.04-42,710.18-16,801.88

Finding the Fourth Proportional to 30,949.04, 42,710.18 and 16,801.88

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Solution

The fourth proportional to 30,949.04, 42,710.18 and 16,801.88 is: 23,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,949.04 : 42,710.18 = 16,801.88 : x
  2. Step 2: Convert to fraction form
    30,949.04/42,710.18 = 16,801.88/x
  3. Step 3: Cross multiply
    30,949.04x = 42,710.18 × 16,801.88
  4. Step 4: Simplify right side
    30,949.04x = 717,611,021.58
  5. Step 5: Solve for x
    x = 717,611,021.58/30,949.04
  6. Step 6: Final answer
    x = 23,186.86

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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.