Home / 45,290.24-67,909.44-18,972.80

Finding the Fourth Proportional to 45,290.24, 67,909.44 and 18,972.80

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Solution

The fourth proportional to 45,290.24, 67,909.44 and 18,972.80 is: 28,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,290.24 : 67,909.44 = 18,972.80 : x
  2. Step 2: Convert to fraction form
    45,290.24/67,909.44 = 18,972.80/x
  3. Step 3: Cross multiply
    45,290.24x = 67,909.44 × 18,972.80
  4. Step 4: Simplify right side
    45,290.24x = 1,288,432,223.23
  5. Step 5: Solve for x
    x = 1,288,432,223.23/45,290.24
  6. Step 6: Final answer
    x = 28,448.34

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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.