Home / 30,708.20-45,988.49-17,520.59

Finding the Fourth Proportional to 30,708.20, 45,988.49 and 17,520.59

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Solution

The fourth proportional to 30,708.20, 45,988.49 and 17,520.59 is: 26,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,708.20 : 45,988.49 = 17,520.59 : x
  2. Step 2: Convert to fraction form
    30,708.20/45,988.49 = 17,520.59/x
  3. Step 3: Cross multiply
    30,708.20x = 45,988.49 × 17,520.59
  4. Step 4: Simplify right side
    30,708.20x = 805,745,478.01
  5. Step 5: Solve for x
    x = 805,745,478.01/30,708.20
  6. Step 6: Final answer
    x = 26,238.77

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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.