Home / 20,540.24-30,822.60-8,853.20

Finding the Fourth Proportional to 20,540.24, 30,822.60 and 8,853.20

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Solution

The fourth proportional to 20,540.24, 30,822.60 and 8,853.20 is: 13,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,540.24 : 30,822.60 = 8,853.20 : x
  2. Step 2: Convert to fraction form
    20,540.24/30,822.60 = 8,853.20/x
  3. Step 3: Cross multiply
    20,540.24x = 30,822.60 × 8,853.20
  4. Step 4: Simplify right side
    20,540.24x = 272,878,642.32
  5. Step 5: Solve for x
    x = 272,878,642.32/20,540.24
  6. Step 6: Final answer
    x = 13,285.08

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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.