Home / 21,448.72-29,562.26-14,265.78

Finding the Fourth Proportional to 21,448.72, 29,562.26 and 14,265.78

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Solution

The fourth proportional to 21,448.72, 29,562.26 and 14,265.78 is: 19,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.72 : 29,562.26 = 14,265.78 : x
  2. Step 2: Convert to fraction form
    21,448.72/29,562.26 = 14,265.78/x
  3. Step 3: Cross multiply
    21,448.72x = 29,562.26 × 14,265.78
  4. Step 4: Simplify right side
    21,448.72x = 421,728,697.46
  5. Step 5: Solve for x
    x = 421,728,697.46/21,448.72
  6. Step 6: Final answer
    x = 19,662.18

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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.