Home / 14,427.40-21,675.78-13,630.86

Finding the Fourth Proportional to 14,427.40, 21,675.78 and 13,630.86

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Solution

The fourth proportional to 14,427.40, 21,675.78 and 13,630.86 is: 20,479.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,427.40 : 21,675.78 = 13,630.86 : x
  2. Step 2: Convert to fraction form
    14,427.40/21,675.78 = 13,630.86/x
  3. Step 3: Cross multiply
    14,427.40x = 21,675.78 × 13,630.86
  4. Step 4: Simplify right side
    14,427.40x = 295,459,414.19
  5. Step 5: Solve for x
    x = 295,459,414.19/14,427.40
  6. Step 6: Final answer
    x = 20,479.05

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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.