Home / 21,051.88-29,040.10-14,668.36

Finding the Fourth Proportional to 21,051.88, 29,040.10 and 14,668.36

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Solution

The fourth proportional to 21,051.88, 29,040.10 and 14,668.36 is: 20,234.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.88 : 29,040.10 = 14,668.36 : x
  2. Step 2: Convert to fraction form
    21,051.88/29,040.10 = 14,668.36/x
  3. Step 3: Cross multiply
    21,051.88x = 29,040.10 × 14,668.36
  4. Step 4: Simplify right side
    21,051.88x = 425,970,641.24
  5. Step 5: Solve for x
    x = 425,970,641.24/21,051.88
  6. Step 6: Final answer
    x = 20,234.33

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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.