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Finding the Fourth Proportional to 30,590.96, 45,903.17 and 11,871.74

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Solution

The fourth proportional to 30,590.96, 45,903.17 and 11,871.74 is: 17,814.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.96 : 45,903.17 = 11,871.74 : x
  2. Step 2: Convert to fraction form
    30,590.96/45,903.17 = 11,871.74/x
  3. Step 3: Cross multiply
    30,590.96x = 45,903.17 × 11,871.74
  4. Step 4: Simplify right side
    30,590.96x = 544,950,210.54
  5. Step 5: Solve for x
    x = 544,950,210.54/30,590.96
  6. Step 6: Final answer
    x = 17,814.09

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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.