Home / 21,175.33-29,209.23-14,005.42

Finding the Fourth Proportional to 21,175.33, 29,209.23 and 14,005.42

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Solution

The fourth proportional to 21,175.33, 29,209.23 and 14,005.42 is: 19,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.33 : 29,209.23 = 14,005.42 : x
  2. Step 2: Convert to fraction form
    21,175.33/29,209.23 = 14,005.42/x
  3. Step 3: Cross multiply
    21,175.33x = 29,209.23 × 14,005.42
  4. Step 4: Simplify right side
    21,175.33x = 409,087,534.03
  5. Step 5: Solve for x
    x = 409,087,534.03/21,175.33
  6. Step 6: Final answer
    x = 19,319.06

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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.