Home / 30,771.06-42,464.05-16,623.90

Finding the Fourth Proportional to 30,771.06, 42,464.05 and 16,623.90

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Solution

The fourth proportional to 30,771.06, 42,464.05 and 16,623.90 is: 22,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,771.06 : 42,464.05 = 16,623.90 : x
  2. Step 2: Convert to fraction form
    30,771.06/42,464.05 = 16,623.90/x
  3. Step 3: Cross multiply
    30,771.06x = 42,464.05 × 16,623.90
  4. Step 4: Simplify right side
    30,771.06x = 705,918,079.24
  5. Step 5: Solve for x
    x = 705,918,079.24/30,771.06
  6. Step 6: Final answer
    x = 22,940.98

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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.