Home / 14,655.41-20,222.30-8,280.31

Finding the Fourth Proportional to 14,655.41, 20,222.30 and 8,280.31

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Solution

The fourth proportional to 14,655.41, 20,222.30 and 8,280.31 is: 11,425.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.41 : 20,222.30 = 8,280.31 : x
  2. Step 2: Convert to fraction form
    14,655.41/20,222.30 = 8,280.31/x
  3. Step 3: Cross multiply
    14,655.41x = 20,222.30 × 8,280.31
  4. Step 4: Simplify right side
    14,655.41x = 167,446,770.40
  5. Step 5: Solve for x
    x = 167,446,770.40/14,655.41
  6. Step 6: Final answer
    x = 11,425.59

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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.