Home / 45,221.90-67,839.32-15,632.80

Finding the Fourth Proportional to 45,221.90, 67,839.32 and 15,632.80

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Solution

The fourth proportional to 45,221.90, 67,839.32 and 15,632.80 is: 23,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,221.90 : 67,839.32 = 15,632.80 : x
  2. Step 2: Convert to fraction form
    45,221.90/67,839.32 = 15,632.80/x
  3. Step 3: Cross multiply
    45,221.90x = 67,839.32 × 15,632.80
  4. Step 4: Simplify right side
    45,221.90x = 1,060,518,391.18
  5. Step 5: Solve for x
    x = 1,060,518,391.18/45,221.90
  6. Step 6: Final answer
    x = 23,451.44

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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.