Home / 30,405.12-45,565.68-14,619.84

Finding the Fourth Proportional to 30,405.12, 45,565.68 and 14,619.84

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Solution

The fourth proportional to 30,405.12, 45,565.68 and 14,619.84 is: 21,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.12 : 45,565.68 = 14,619.84 : x
  2. Step 2: Convert to fraction form
    30,405.12/45,565.68 = 14,619.84/x
  3. Step 3: Cross multiply
    30,405.12x = 45,565.68 × 14,619.84
  4. Step 4: Simplify right side
    30,405.12x = 666,162,951.09
  5. Step 5: Solve for x
    x = 666,162,951.09/30,405.12
  6. Step 6: Final answer
    x = 21,909.56

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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.