Home / 28,346.56-39,118.61-15,601.21

Finding the Fourth Proportional to 28,346.56, 39,118.61 and 15,601.21

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Solution

The fourth proportional to 28,346.56, 39,118.61 and 15,601.21 is: 21,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.56 : 39,118.61 = 15,601.21 : x
  2. Step 2: Convert to fraction form
    28,346.56/39,118.61 = 15,601.21/x
  3. Step 3: Cross multiply
    28,346.56x = 39,118.61 × 15,601.21
  4. Step 4: Simplify right side
    28,346.56x = 610,297,590.72
  5. Step 5: Solve for x
    x = 610,297,590.72/28,346.56
  6. Step 6: Final answer
    x = 21,529.87

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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.