Home / 28,503.38-39,334.46-15,928.13

Finding the Fourth Proportional to 28,503.38, 39,334.46 and 15,928.13

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Solution

The fourth proportional to 28,503.38, 39,334.46 and 15,928.13 is: 21,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.38 : 39,334.46 = 15,928.13 : x
  2. Step 2: Convert to fraction form
    28,503.38/39,334.46 = 15,928.13/x
  3. Step 3: Cross multiply
    28,503.38x = 39,334.46 × 15,928.13
  4. Step 4: Simplify right side
    28,503.38x = 626,524,392.36
  5. Step 5: Solve for x
    x = 626,524,392.36/28,503.38
  6. Step 6: Final answer
    x = 21,980.71

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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.