Home / 28,652.16-39,544.70-15,909.42

Finding the Fourth Proportional to 28,652.16, 39,544.70 and 15,909.42

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Solution

The fourth proportional to 28,652.16, 39,544.70 and 15,909.42 is: 21,957.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,652.16 : 39,544.70 = 15,909.42 : x
  2. Step 2: Convert to fraction form
    28,652.16/39,544.70 = 15,909.42/x
  3. Step 3: Cross multiply
    28,652.16x = 39,544.70 × 15,909.42
  4. Step 4: Simplify right side
    28,652.16x = 629,133,176.87
  5. Step 5: Solve for x
    x = 629,133,176.87/28,652.16
  6. Step 6: Final answer
    x = 21,957.61

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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.