Home / 28,580.32-39,439.92-15,834.04

Finding the Fourth Proportional to 28,580.32, 39,439.92 and 15,834.04

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Solution

The fourth proportional to 28,580.32, 39,439.92 and 15,834.04 is: 21,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.32 : 39,439.92 = 15,834.04 : x
  2. Step 2: Convert to fraction form
    28,580.32/39,439.92 = 15,834.04/x
  3. Step 3: Cross multiply
    28,580.32x = 39,439.92 × 15,834.04
  4. Step 4: Simplify right side
    28,580.32x = 624,493,270.88
  5. Step 5: Solve for x
    x = 624,493,270.88/28,580.32
  6. Step 6: Final answer
    x = 21,850.46

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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.