Home / 30,914.76-42,662.43-16,767.66

Finding the Fourth Proportional to 30,914.76, 42,662.43 and 16,767.66

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Solution

The fourth proportional to 30,914.76, 42,662.43 and 16,767.66 is: 23,139.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,914.76 : 42,662.43 = 16,767.66 : x
  2. Step 2: Convert to fraction form
    30,914.76/42,662.43 = 16,767.66/x
  3. Step 3: Cross multiply
    30,914.76x = 42,662.43 × 16,767.66
  4. Step 4: Simplify right side
    30,914.76x = 715,349,121.01
  5. Step 5: Solve for x
    x = 715,349,121.01/30,914.76
  6. Step 6: Final answer
    x = 23,139.40

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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.