Home / 20,442.56-30,637.36-8,582.88

Finding the Fourth Proportional to 20,442.56, 30,637.36 and 8,582.88

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Solution

The fourth proportional to 20,442.56, 30,637.36 and 8,582.88 is: 12,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442.56 : 30,637.36 = 8,582.88 : x
  2. Step 2: Convert to fraction form
    20,442.56/30,637.36 = 8,582.88/x
  3. Step 3: Cross multiply
    20,442.56x = 30,637.36 × 8,582.88
  4. Step 4: Simplify right side
    20,442.56x = 262,956,784.40
  5. Step 5: Solve for x
    x = 262,956,784.40/20,442.56
  6. Step 6: Final answer
    x = 12,863.20

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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.