Home / 19,975.40-29,930.70-16,670.60

Finding the Fourth Proportional to 19,975.40, 29,930.70 and 16,670.60

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Solution

The fourth proportional to 19,975.40, 29,930.70 and 16,670.60 is: 24,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.40 : 29,930.70 = 16,670.60 : x
  2. Step 2: Convert to fraction form
    19,975.40/29,930.70 = 16,670.60/x
  3. Step 3: Cross multiply
    19,975.40x = 29,930.70 × 16,670.60
  4. Step 4: Simplify right side
    19,975.40x = 498,962,727.42
  5. Step 5: Solve for x
    x = 498,962,727.42/19,975.40
  6. Step 6: Final answer
    x = 24,978.86

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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.