Home / 23,686.13-32,686.34-12,930.63

Finding the Fourth Proportional to 23,686.13, 32,686.34 and 12,930.63

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Solution

The fourth proportional to 23,686.13, 32,686.34 and 12,930.63 is: 17,843.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,686.13 : 32,686.34 = 12,930.63 : x
  2. Step 2: Convert to fraction form
    23,686.13/32,686.34 = 12,930.63/x
  3. Step 3: Cross multiply
    23,686.13x = 32,686.34 × 12,930.63
  4. Step 4: Simplify right side
    23,686.13x = 422,654,903.94
  5. Step 5: Solve for x
    x = 422,654,903.94/23,686.13
  6. Step 6: Final answer
    x = 17,843.99

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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.