Home / 14,742.32-20,229.98-13,405.82

Finding the Fourth Proportional to 14,742.32, 20,229.98 and 13,405.82

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Solution

The fourth proportional to 14,742.32, 20,229.98 and 13,405.82 is: 18,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.32 : 20,229.98 = 13,405.82 : x
  2. Step 2: Convert to fraction form
    14,742.32/20,229.98 = 13,405.82/x
  3. Step 3: Cross multiply
    14,742.32x = 20,229.98 × 13,405.82
  4. Step 4: Simplify right side
    14,742.32x = 271,199,352.88
  5. Step 5: Solve for x
    x = 271,199,352.88/14,742.32
  6. Step 6: Final answer
    x = 18,395.98

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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.