Home / 23,309.80-34,964.70-13,978.60

Finding the Fourth Proportional to 23,309.80, 34,964.70 and 13,978.60

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Solution

The fourth proportional to 23,309.80, 34,964.70 and 13,978.60 is: 20,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,309.80 : 34,964.70 = 13,978.60 : x
  2. Step 2: Convert to fraction form
    23,309.80/34,964.70 = 13,978.60/x
  3. Step 3: Cross multiply
    23,309.80x = 34,964.70 × 13,978.60
  4. Step 4: Simplify right side
    23,309.80x = 488,757,555.42
  5. Step 5: Solve for x
    x = 488,757,555.42/23,309.80
  6. Step 6: Final answer
    x = 20,967.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.