Home / 21,213.09-29,254.50-14,417.29

Finding the Fourth Proportional to 21,213.09, 29,254.50 and 14,417.29

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Solution

The fourth proportional to 21,213.09, 29,254.50 and 14,417.29 is: 19,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,213.09 : 29,254.50 = 14,417.29 : x
  2. Step 2: Convert to fraction form
    21,213.09/29,254.50 = 14,417.29/x
  3. Step 3: Cross multiply
    21,213.09x = 29,254.50 × 14,417.29
  4. Step 4: Simplify right side
    21,213.09x = 421,770,464.03
  5. Step 5: Solve for x
    x = 421,770,464.03/21,213.09
  6. Step 6: Final answer
    x = 19,882.56

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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.