Home / 28,362.62-39,129.84-28,318.88

Finding the Fourth Proportional to 28,362.62, 39,129.84 and 28,318.88

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Solution

The fourth proportional to 28,362.62, 39,129.84 and 28,318.88 is: 39,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.62 : 39,129.84 = 28,318.88 : x
  2. Step 2: Convert to fraction form
    28,362.62/39,129.84 = 28,318.88/x
  3. Step 3: Cross multiply
    28,362.62x = 39,129.84 × 28,318.88
  4. Step 4: Simplify right side
    28,362.62x = 1,108,113,243.38
  5. Step 5: Solve for x
    x = 1,108,113,243.38/28,362.62
  6. Step 6: Final answer
    x = 39,069.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.