Home / 28,581.85-39,443.25-15,835.42

Finding the Fourth Proportional to 28,581.85, 39,443.25 and 15,835.42

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Solution

The fourth proportional to 28,581.85, 39,443.25 and 15,835.42 is: 21,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.85 : 39,443.25 = 15,835.42 : x
  2. Step 2: Convert to fraction form
    28,581.85/39,443.25 = 15,835.42/x
  3. Step 3: Cross multiply
    28,581.85x = 39,443.25 × 15,835.42
  4. Step 4: Simplify right side
    28,581.85x = 624,600,429.92
  5. Step 5: Solve for x
    x = 624,600,429.92/28,581.85
  6. Step 6: Final answer
    x = 21,853.04

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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.