Home / 21,175.27-29,209.04-14,005.15

Finding the Fourth Proportional to 21,175.27, 29,209.04 and 14,005.15

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Solution

The fourth proportional to 21,175.27, 29,209.04 and 14,005.15 is: 19,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.27 : 29,209.04 = 14,005.15 : x
  2. Step 2: Convert to fraction form
    21,175.27/29,209.04 = 14,005.15/x
  3. Step 3: Cross multiply
    21,175.27x = 29,209.04 × 14,005.15
  4. Step 4: Simplify right side
    21,175.27x = 409,076,896.03
  5. Step 5: Solve for x
    x = 409,076,896.03/21,175.27
  6. Step 6: Final answer
    x = 19,318.62

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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.