Home / 30,340.08-45,520.80-15,555.96

Finding the Fourth Proportional to 30,340.08, 45,520.80 and 15,555.96

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Solution

The fourth proportional to 30,340.08, 45,520.80 and 15,555.96 is: 23,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.08 : 45,520.80 = 15,555.96 : x
  2. Step 2: Convert to fraction form
    30,340.08/45,520.80 = 15,555.96/x
  3. Step 3: Cross multiply
    30,340.08x = 45,520.80 × 15,555.96
  4. Step 4: Simplify right side
    30,340.08x = 708,119,743.97
  5. Step 5: Solve for x
    x = 708,119,743.97/30,340.08
  6. Step 6: Final answer
    x = 23,339.42

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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.