Home / 30,962.69-42,728.33-16,815.41

Finding the Fourth Proportional to 30,962.69, 42,728.33 and 16,815.41

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Solution

The fourth proportional to 30,962.69, 42,728.33 and 16,815.41 is: 23,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,962.69 : 42,728.33 = 16,815.41 : x
  2. Step 2: Convert to fraction form
    30,962.69/42,728.33 = 16,815.41/x
  3. Step 3: Cross multiply
    30,962.69x = 42,728.33 × 16,815.41
  4. Step 4: Simplify right side
    30,962.69x = 718,494,303.49
  5. Step 5: Solve for x
    x = 718,494,303.49/30,962.69
  6. Step 6: Final answer
    x = 23,205.16

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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.