Home / 30,845.85-42,567.22-16,698.69

Finding the Fourth Proportional to 30,845.85, 42,567.22 and 16,698.69

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Solution

The fourth proportional to 30,845.85, 42,567.22 and 16,698.69 is: 23,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,845.85 : 42,567.22 = 16,698.69 : x
  2. Step 2: Convert to fraction form
    30,845.85/42,567.22 = 16,698.69/x
  3. Step 3: Cross multiply
    30,845.85x = 42,567.22 × 16,698.69
  4. Step 4: Simplify right side
    30,845.85x = 710,816,810.94
  5. Step 5: Solve for x
    x = 710,816,810.94/30,845.85
  6. Step 6: Final answer
    x = 23,044.16

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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.