Home / 28,583.85-39,446.01-15,837.42

Finding the Fourth Proportional to 28,583.85, 39,446.01 and 15,837.42

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Solution

The fourth proportional to 28,583.85, 39,446.01 and 15,837.42 is: 21,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.85 : 39,446.01 = 15,837.42 : x
  2. Step 2: Convert to fraction form
    28,583.85/39,446.01 = 15,837.42/x
  3. Step 3: Cross multiply
    28,583.85x = 39,446.01 × 15,837.42
  4. Step 4: Simplify right side
    28,583.85x = 624,723,027.69
  5. Step 5: Solve for x
    x = 624,723,027.69/28,583.85
  6. Step 6: Final answer
    x = 21,855.80

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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.