Home / 45,288.24-67,906.44-18,970.80

Finding the Fourth Proportional to 45,288.24, 67,906.44 and 18,970.80

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Solution

The fourth proportional to 45,288.24, 67,906.44 and 18,970.80 is: 28,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,288.24 : 67,906.44 = 18,970.80 : x
  2. Step 2: Convert to fraction form
    45,288.24/67,906.44 = 18,970.80/x
  3. Step 3: Cross multiply
    45,288.24x = 67,906.44 × 18,970.80
  4. Step 4: Simplify right side
    45,288.24x = 1,288,239,491.95
  5. Step 5: Solve for x
    x = 1,288,239,491.95/45,288.24
  6. Step 6: Final answer
    x = 28,445.34

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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.