Home / 28,047.80-42,042.90-15,548.60

Finding the Fourth Proportional to 28,047.80, 42,042.90 and 15,548.60

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Solution

The fourth proportional to 28,047.80, 42,042.90 and 15,548.60 is: 23,306.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.80 : 42,042.90 = 15,548.60 : x
  2. Step 2: Convert to fraction form
    28,047.80/42,042.90 = 15,548.60/x
  3. Step 3: Cross multiply
    28,047.80x = 42,042.90 × 15,548.60
  4. Step 4: Simplify right side
    28,047.80x = 653,708,234.94
  5. Step 5: Solve for x
    x = 653,708,234.94/28,047.80
  6. Step 6: Final answer
    x = 23,306.93

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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.