Home / 30,453.46-45,689.42-13,809.02

Finding the Fourth Proportional to 30,453.46, 45,689.42 and 13,809.02

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Solution

The fourth proportional to 30,453.46, 45,689.42 and 13,809.02 is: 20,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,453.46 : 45,689.42 = 13,809.02 : x
  2. Step 2: Convert to fraction form
    30,453.46/45,689.42 = 13,809.02/x
  3. Step 3: Cross multiply
    30,453.46x = 45,689.42 × 13,809.02
  4. Step 4: Simplify right side
    30,453.46x = 630,926,114.57
  5. Step 5: Solve for x
    x = 630,926,114.57/30,453.46
  6. Step 6: Final answer
    x = 20,717.72

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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.