Home / 30,709.20-45,989.99-17,521.59

Finding the Fourth Proportional to 30,709.20, 45,989.99 and 17,521.59

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Solution

The fourth proportional to 30,709.20, 45,989.99 and 17,521.59 is: 26,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,709.20 : 45,989.99 = 17,521.59 : x
  2. Step 2: Convert to fraction form
    30,709.20/45,989.99 = 17,521.59/x
  3. Step 3: Cross multiply
    30,709.20x = 45,989.99 × 17,521.59
  4. Step 4: Simplify right side
    30,709.20x = 805,817,748.88
  5. Step 5: Solve for x
    x = 805,817,748.88/30,709.20
  6. Step 6: Final answer
    x = 26,240.27

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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.