Home / 15,420.34-23,131.97-4,326.98

Finding the Fourth Proportional to 15,420.34, 23,131.97 and 4,326.98

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Solution

The fourth proportional to 15,420.34, 23,131.97 and 4,326.98 is: 6,490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.34 : 23,131.97 = 4,326.98 : x
  2. Step 2: Convert to fraction form
    15,420.34/23,131.97 = 4,326.98/x
  3. Step 3: Cross multiply
    15,420.34x = 23,131.97 × 4,326.98
  4. Step 4: Simplify right side
    15,420.34x = 100,091,571.55
  5. Step 5: Solve for x
    x = 100,091,571.55/15,420.34
  6. Step 6: Final answer
    x = 6,490.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.