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Finding the Fourth Proportional to 29,630.96, 40,872.96 and 19,559.60

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Solution

The fourth proportional to 29,630.96, 40,872.96 and 19,559.60 is: 26,980.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,630.96 : 40,872.96 = 19,559.60 : x
  2. Step 2: Convert to fraction form
    29,630.96/40,872.96 = 19,559.60/x
  3. Step 3: Cross multiply
    29,630.96x = 40,872.96 × 19,559.60
  4. Step 4: Simplify right side
    29,630.96x = 799,458,748.42
  5. Step 5: Solve for x
    x = 799,458,748.42/29,630.96
  6. Step 6: Final answer
    x = 26,980.52

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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.