Home / 21,266.14-31,887.42-8,604.46

Finding the Fourth Proportional to 21,266.14, 31,887.42 and 8,604.46

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Solution

The fourth proportional to 21,266.14, 31,887.42 and 8,604.46 is: 12,901.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.14 : 31,887.42 = 8,604.46 : x
  2. Step 2: Convert to fraction form
    21,266.14/31,887.42 = 8,604.46/x
  3. Step 3: Cross multiply
    21,266.14x = 31,887.42 × 8,604.46
  4. Step 4: Simplify right side
    21,266.14x = 274,374,029.89
  5. Step 5: Solve for x
    x = 274,374,029.89/21,266.14
  6. Step 6: Final answer
    x = 12,901.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.