Home / 28,365.80-42,553.20-9,647.60

Finding the Fourth Proportional to 28,365.80, 42,553.20 and 9,647.60

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Solution

The fourth proportional to 28,365.80, 42,553.20 and 9,647.60 is: 14,472.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.80 : 42,553.20 = 9,647.60 : x
  2. Step 2: Convert to fraction form
    28,365.80/42,553.20 = 9,647.60/x
  3. Step 3: Cross multiply
    28,365.80x = 42,553.20 × 9,647.60
  4. Step 4: Simplify right side
    28,365.80x = 410,536,252.32
  5. Step 5: Solve for x
    x = 410,536,252.32/28,365.80
  6. Step 6: Final answer
    x = 14,472.93

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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.