Home / 28,580.23-39,438.66-15,832.18

Finding the Fourth Proportional to 28,580.23, 39,438.66 and 15,832.18

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Solution

The fourth proportional to 28,580.23, 39,438.66 and 15,832.18 is: 21,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.23 : 39,438.66 = 15,832.18 : x
  2. Step 2: Convert to fraction form
    28,580.23/39,438.66 = 15,832.18/x
  3. Step 3: Cross multiply
    28,580.23x = 39,438.66 × 15,832.18
  4. Step 4: Simplify right side
    28,580.23x = 624,399,964.08
  5. Step 5: Solve for x
    x = 624,399,964.08/28,580.23
  6. Step 6: Final answer
    x = 21,847.27

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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.