Home / 30,251.80-45,377.70-21,892.60

Finding the Fourth Proportional to 30,251.80, 45,377.70 and 21,892.60

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Solution

The fourth proportional to 30,251.80, 45,377.70 and 21,892.60 is: 32,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.80 : 45,377.70 = 21,892.60 : x
  2. Step 2: Convert to fraction form
    30,251.80/45,377.70 = 21,892.60/x
  3. Step 3: Cross multiply
    30,251.80x = 45,377.70 × 21,892.60
  4. Step 4: Simplify right side
    30,251.80x = 993,435,835.02
  5. Step 5: Solve for x
    x = 993,435,835.02/30,251.80
  6. Step 6: Final answer
    x = 32,838.90

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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.