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Finding the Fourth Proportional to 30,524.62, 45,749.96 and 12,957.56

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Solution

The fourth proportional to 30,524.62, 45,749.96 and 12,957.56 is: 19,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,524.62 : 45,749.96 = 12,957.56 : x
  2. Step 2: Convert to fraction form
    30,524.62/45,749.96 = 12,957.56/x
  3. Step 3: Cross multiply
    30,524.62x = 45,749.96 × 12,957.56
  4. Step 4: Simplify right side
    30,524.62x = 592,807,851.70
  5. Step 5: Solve for x
    x = 592,807,851.70/30,524.62
  6. Step 6: Final answer
    x = 19,420.65

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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.