Home / 28,204.15-42,311.10-9,485.98

Finding the Fourth Proportional to 28,204.15, 42,311.10 and 9,485.98

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Solution

The fourth proportional to 28,204.15, 42,311.10 and 9,485.98 is: 14,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.15 : 42,311.10 = 9,485.98 : x
  2. Step 2: Convert to fraction form
    28,204.15/42,311.10 = 9,485.98/x
  3. Step 3: Cross multiply
    28,204.15x = 42,311.10 × 9,485.98
  4. Step 4: Simplify right side
    28,204.15x = 401,362,248.38
  5. Step 5: Solve for x
    x = 401,362,248.38/28,204.15
  6. Step 6: Final answer
    x = 14,230.61

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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.