Home / 21,754.81-30,010.96-14,197.64

Finding the Fourth Proportional to 21,754.81, 30,010.96 and 14,197.64

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Solution

The fourth proportional to 21,754.81, 30,010.96 and 14,197.64 is: 19,585.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,754.81 : 30,010.96 = 14,197.64 : x
  2. Step 2: Convert to fraction form
    21,754.81/30,010.96 = 14,197.64/x
  3. Step 3: Cross multiply
    21,754.81x = 30,010.96 × 14,197.64
  4. Step 4: Simplify right side
    21,754.81x = 426,084,845.67
  5. Step 5: Solve for x
    x = 426,084,845.67/21,754.81
  6. Step 6: Final answer
    x = 19,585.78

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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.