Home / 21,540.55-32,312.36-5,745.49

Finding the Fourth Proportional to 21,540.55, 32,312.36 and 5,745.49

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Solution

The fourth proportional to 21,540.55, 32,312.36 and 5,745.49 is: 8,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.55 : 32,312.36 = 5,745.49 : x
  2. Step 2: Convert to fraction form
    21,540.55/32,312.36 = 5,745.49/x
  3. Step 3: Cross multiply
    21,540.55x = 32,312.36 × 5,745.49
  4. Step 4: Simplify right side
    21,540.55x = 185,650,341.26
  5. Step 5: Solve for x
    x = 185,650,341.26/21,540.55
  6. Step 6: Final answer
    x = 8,618.64

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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.