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Finding the Fourth Proportional to 30,624.71, 45,954.86 and 11,917.67

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Solution

The fourth proportional to 30,624.71, 45,954.86 and 11,917.67 is: 17,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,624.71 : 45,954.86 = 11,917.67 : x
  2. Step 2: Convert to fraction form
    30,624.71/45,954.86 = 11,917.67/x
  3. Step 3: Cross multiply
    30,624.71x = 45,954.86 × 11,917.67
  4. Step 4: Simplify right side
    30,624.71x = 547,674,567.01
  5. Step 5: Solve for x
    x = 547,674,567.01/30,624.71
  6. Step 6: Final answer
    x = 17,883.42

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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.