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Finding the Fourth Proportional to 30,539.83, 45,780.58 and 9,749.83

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Solution

The fourth proportional to 30,539.83, 45,780.58 and 9,749.83 is: 14,615.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.83 : 45,780.58 = 9,749.83 : x
  2. Step 2: Convert to fraction form
    30,539.83/45,780.58 = 9,749.83/x
  3. Step 3: Cross multiply
    30,539.83x = 45,780.58 × 9,749.83
  4. Step 4: Simplify right side
    30,539.83x = 446,352,872.30
  5. Step 5: Solve for x
    x = 446,352,872.30/30,539.83
  6. Step 6: Final answer
    x = 14,615.43

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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.