Home / 20,305.54-28,026.17-12,346.08

Finding the Fourth Proportional to 20,305.54, 28,026.17 and 12,346.08

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Solution

The fourth proportional to 20,305.54, 28,026.17 and 12,346.08 is: 17,040.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,305.54 : 28,026.17 = 12,346.08 : x
  2. Step 2: Convert to fraction form
    20,305.54/28,026.17 = 12,346.08/x
  3. Step 3: Cross multiply
    20,305.54x = 28,026.17 × 12,346.08
  4. Step 4: Simplify right side
    20,305.54x = 346,013,336.91
  5. Step 5: Solve for x
    x = 346,013,336.91/20,305.54
  6. Step 6: Final answer
    x = 17,040.34

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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.