Home / 45,002.48-67,494.28-20,661.60

Finding the Fourth Proportional to 45,002.48, 67,494.28 and 20,661.60

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Solution

The fourth proportional to 45,002.48, 67,494.28 and 20,661.60 is: 30,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,002.48 : 67,494.28 = 20,661.60 : x
  2. Step 2: Convert to fraction form
    45,002.48/67,494.28 = 20,661.60/x
  3. Step 3: Cross multiply
    45,002.48x = 67,494.28 × 20,661.60
  4. Step 4: Simplify right side
    45,002.48x = 1,394,539,815.65
  5. Step 5: Solve for x
    x = 1,394,539,815.65/45,002.48
  6. Step 6: Final answer
    x = 30,988.07

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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.