Home / 28,507.62-39,340.33-15,932.37

Finding the Fourth Proportional to 28,507.62, 39,340.33 and 15,932.37

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Solution

The fourth proportional to 28,507.62, 39,340.33 and 15,932.37 is: 21,986.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507.62 : 39,340.33 = 15,932.37 : x
  2. Step 2: Convert to fraction form
    28,507.62/39,340.33 = 15,932.37/x
  3. Step 3: Cross multiply
    28,507.62x = 39,340.33 × 15,932.37
  4. Step 4: Simplify right side
    28,507.62x = 626,784,693.48
  5. Step 5: Solve for x
    x = 626,784,693.48/28,507.62
  6. Step 6: Final answer
    x = 21,986.57

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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.