Home / 20,972.55-28,941.66-12,025.32

Finding the Fourth Proportional to 20,972.55, 28,941.66 and 12,025.32

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Solution

The fourth proportional to 20,972.55, 28,941.66 and 12,025.32 is: 16,594.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,972.55 : 28,941.66 = 12,025.32 : x
  2. Step 2: Convert to fraction form
    20,972.55/28,941.66 = 12,025.32/x
  3. Step 3: Cross multiply
    20,972.55x = 28,941.66 × 12,025.32
  4. Step 4: Simplify right side
    20,972.55x = 348,032,722.83
  5. Step 5: Solve for x
    x = 348,032,722.83/20,972.55
  6. Step 6: Final answer
    x = 16,594.68

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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.