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Finding the Fourth Proportional to 30,484.35, 45,744.75 and 10,779.48

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Solution

The fourth proportional to 30,484.35, 45,744.75 and 10,779.48 is: 16,175.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,484.35 : 45,744.75 = 10,779.48 : x
  2. Step 2: Convert to fraction form
    30,484.35/45,744.75 = 10,779.48/x
  3. Step 3: Cross multiply
    30,484.35x = 45,744.75 × 10,779.48
  4. Step 4: Simplify right side
    30,484.35x = 493,104,617.73
  5. Step 5: Solve for x
    x = 493,104,617.73/30,484.35
  6. Step 6: Final answer
    x = 16,175.66

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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.