Home / 21,814.66-30,102.46-12,254.03

Finding the Fourth Proportional to 21,814.66, 30,102.46 and 12,254.03

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Solution

The fourth proportional to 21,814.66, 30,102.46 and 12,254.03 is: 16,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,814.66 : 30,102.46 = 12,254.03 : x
  2. Step 2: Convert to fraction form
    21,814.66/30,102.46 = 12,254.03/x
  3. Step 3: Cross multiply
    21,814.66x = 30,102.46 × 12,254.03
  4. Step 4: Simplify right side
    21,814.66x = 368,876,266.77
  5. Step 5: Solve for x
    x = 368,876,266.77/21,814.66
  6. Step 6: Final answer
    x = 16,909.56

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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.