Home / 20,599.09-28,399.26-16,364.21

Finding the Fourth Proportional to 20,599.09, 28,399.26 and 16,364.21

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Solution

The fourth proportional to 20,599.09, 28,399.26 and 16,364.21 is: 22,560.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.09 : 28,399.26 = 16,364.21 : x
  2. Step 2: Convert to fraction form
    20,599.09/28,399.26 = 16,364.21/x
  3. Step 3: Cross multiply
    20,599.09x = 28,399.26 × 16,364.21
  4. Step 4: Simplify right side
    20,599.09x = 464,731,454.48
  5. Step 5: Solve for x
    x = 464,731,454.48/20,599.09
  6. Step 6: Final answer
    x = 22,560.78

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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.