Home / 28,219.96-42,349.40-9,751.96

Finding the Fourth Proportional to 28,219.96, 42,349.40 and 9,751.96

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Solution

The fourth proportional to 28,219.96, 42,349.40 and 9,751.96 is: 14,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.96 : 42,349.40 = 9,751.96 : x
  2. Step 2: Convert to fraction form
    28,219.96/42,349.40 = 9,751.96/x
  3. Step 3: Cross multiply
    28,219.96x = 42,349.40 × 9,751.96
  4. Step 4: Simplify right side
    28,219.96x = 412,989,654.82
  5. Step 5: Solve for x
    x = 412,989,654.82/28,219.96
  6. Step 6: Final answer
    x = 14,634.66

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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.