Home / 20,652.48-28,500.96-12,155.04

Finding the Fourth Proportional to 20,652.48, 28,500.96 and 12,155.04

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Solution

The fourth proportional to 20,652.48, 28,500.96 and 12,155.04 is: 16,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.48 : 28,500.96 = 12,155.04 : x
  2. Step 2: Convert to fraction form
    20,652.48/28,500.96 = 12,155.04/x
  3. Step 3: Cross multiply
    20,652.48x = 28,500.96 × 12,155.04
  4. Step 4: Simplify right side
    20,652.48x = 346,430,308.84
  5. Step 5: Solve for x
    x = 346,430,308.84/20,652.48
  6. Step 6: Final answer
    x = 16,774.27

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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.