Home / 28,477.56-39,297.78-15,902.04

Finding the Fourth Proportional to 28,477.56, 39,297.78 and 15,902.04

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Solution

The fourth proportional to 28,477.56, 39,297.78 and 15,902.04 is: 21,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,477.56 : 39,297.78 = 15,902.04 : x
  2. Step 2: Convert to fraction form
    28,477.56/39,297.78 = 15,902.04/x
  3. Step 3: Cross multiply
    28,477.56x = 39,297.78 × 15,902.04
  4. Step 4: Simplify right side
    28,477.56x = 624,914,869.47
  5. Step 5: Solve for x
    x = 624,914,869.47/28,477.56
  6. Step 6: Final answer
    x = 21,944.12

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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.