Home / 20,302.10-28,025.54-12,346.88

Finding the Fourth Proportional to 20,302.10, 28,025.54 and 12,346.88

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Solution

The fourth proportional to 20,302.10, 28,025.54 and 12,346.88 is: 17,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.10 : 28,025.54 = 12,346.88 : x
  2. Step 2: Convert to fraction form
    20,302.10/28,025.54 = 12,346.88/x
  3. Step 3: Cross multiply
    20,302.10x = 28,025.54 × 12,346.88
  4. Step 4: Simplify right side
    20,302.10x = 346,027,917.58
  5. Step 5: Solve for x
    x = 346,027,917.58/20,302.10
  6. Step 6: Final answer
    x = 17,043.95

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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.