Home / 28,211.80-42,333.90-10,694.20

Finding the Fourth Proportional to 28,211.80, 42,333.90 and 10,694.20

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Solution

The fourth proportional to 28,211.80, 42,333.90 and 10,694.20 is: 16,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,211.80 : 42,333.90 = 10,694.20 : x
  2. Step 2: Convert to fraction form
    28,211.80/42,333.90 = 10,694.20/x
  3. Step 3: Cross multiply
    28,211.80x = 42,333.90 × 10,694.20
  4. Step 4: Simplify right side
    28,211.80x = 452,727,193.38
  5. Step 5: Solve for x
    x = 452,727,193.38/28,211.80
  6. Step 6: Final answer
    x = 16,047.44

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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.