Home / 28,669.62-39,562.75-15,923.62

Finding the Fourth Proportional to 28,669.62, 39,562.75 and 15,923.62

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Solution

The fourth proportional to 28,669.62, 39,562.75 and 15,923.62 is: 21,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.62 : 39,562.75 = 15,923.62 : x
  2. Step 2: Convert to fraction form
    28,669.62/39,562.75 = 15,923.62/x
  3. Step 3: Cross multiply
    28,669.62x = 39,562.75 × 15,923.62
  4. Step 4: Simplify right side
    28,669.62x = 629,982,197.16
  5. Step 5: Solve for x
    x = 629,982,197.16/28,669.62
  6. Step 6: Final answer
    x = 21,973.86

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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.