Home / 28,605.18-39,474.50-15,858.30

Finding the Fourth Proportional to 28,605.18, 39,474.50 and 15,858.30

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Solution

The fourth proportional to 28,605.18, 39,474.50 and 15,858.30 is: 21,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605.18 : 39,474.50 = 15,858.30 : x
  2. Step 2: Convert to fraction form
    28,605.18/39,474.50 = 15,858.30/x
  3. Step 3: Cross multiply
    28,605.18x = 39,474.50 × 15,858.30
  4. Step 4: Simplify right side
    28,605.18x = 625,998,463.35
  5. Step 5: Solve for x
    x = 625,998,463.35/28,605.18
  6. Step 6: Final answer
    x = 21,884.09

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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.