Home / 21,498.09-29,670.10-13,000.27

Finding the Fourth Proportional to 21,498.09, 29,670.10 and 13,000.27

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Solution

The fourth proportional to 21,498.09, 29,670.10 and 13,000.27 is: 17,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.09 : 29,670.10 = 13,000.27 : x
  2. Step 2: Convert to fraction form
    21,498.09/29,670.10 = 13,000.27/x
  3. Step 3: Cross multiply
    21,498.09x = 29,670.10 × 13,000.27
  4. Step 4: Simplify right side
    21,498.09x = 385,719,371.15
  5. Step 5: Solve for x
    x = 385,719,371.15/21,498.09
  6. Step 6: Final answer
    x = 17,942.03

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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.