Home / 32,720.33-45,148.77-18,379.48

Finding the Fourth Proportional to 32,720.33, 45,148.77 and 18,379.48

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Solution

The fourth proportional to 32,720.33, 45,148.77 and 18,379.48 is: 25,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,720.33 : 45,148.77 = 18,379.48 : x
  2. Step 2: Convert to fraction form
    32,720.33/45,148.77 = 18,379.48/x
  3. Step 3: Cross multiply
    32,720.33x = 45,148.77 × 18,379.48
  4. Step 4: Simplify right side
    32,720.33x = 829,810,915.24
  5. Step 5: Solve for x
    x = 829,810,915.24/32,720.33
  6. Step 6: Final answer
    x = 25,360.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.