Home / 23,687.12-32,687.70-12,931.58

Finding the Fourth Proportional to 23,687.12, 32,687.70 and 12,931.58

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Solution

The fourth proportional to 23,687.12, 32,687.70 and 12,931.58 is: 17,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,687.12 : 32,687.70 = 12,931.58 : x
  2. Step 2: Convert to fraction form
    23,687.12/32,687.70 = 12,931.58/x
  3. Step 3: Cross multiply
    23,687.12x = 32,687.70 × 12,931.58
  4. Step 4: Simplify right side
    23,687.12x = 422,703,575.24
  5. Step 5: Solve for x
    x = 422,703,575.24/23,687.12
  6. Step 6: Final answer
    x = 17,845.29

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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.