Home / 15,604.95-21,425.93-15,198.87

Finding the Fourth Proportional to 15,604.95, 21,425.93 and 15,198.87

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Solution

The fourth proportional to 15,604.95, 21,425.93 and 15,198.87 is: 20,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.95 : 21,425.93 = 15,198.87 : x
  2. Step 2: Convert to fraction form
    15,604.95/21,425.93 = 15,198.87/x
  3. Step 3: Cross multiply
    15,604.95x = 21,425.93 × 15,198.87
  4. Step 4: Simplify right side
    15,604.95x = 325,649,962.70
  5. Step 5: Solve for x
    x = 325,649,962.70/15,604.95
  6. Step 6: Final answer
    x = 20,868.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.