Home / 21,455.60-32,115.96-14,861.79

Finding the Fourth Proportional to 21,455.60, 32,115.96 and 14,861.79

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Solution

The fourth proportional to 21,455.60, 32,115.96 and 14,861.79 is: 22,245.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.60 : 32,115.96 = 14,861.79 : x
  2. Step 2: Convert to fraction form
    21,455.60/32,115.96 = 14,861.79/x
  3. Step 3: Cross multiply
    21,455.60x = 32,115.96 × 14,861.79
  4. Step 4: Simplify right side
    21,455.60x = 477,300,653.17
  5. Step 5: Solve for x
    x = 477,300,653.17/21,455.60
  6. Step 6: Final answer
    x = 22,245.98

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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.