Home / 34,260.60-51,405.30-18,689.40

Finding the Fourth Proportional to 34,260.60, 51,405.30 and 18,689.40

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Solution

The fourth proportional to 34,260.60, 51,405.30 and 18,689.40 is: 28,041.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,260.60 : 51,405.30 = 18,689.40 : x
  2. Step 2: Convert to fraction form
    34,260.60/51,405.30 = 18,689.40/x
  3. Step 3: Cross multiply
    34,260.60x = 51,405.30 × 18,689.40
  4. Step 4: Simplify right side
    34,260.60x = 960,734,213.82
  5. Step 5: Solve for x
    x = 960,734,213.82/34,260.60
  6. Step 6: Final answer
    x = 28,041.96

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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.