Home / 21,693.49-29,937.40-12,262.05

Finding the Fourth Proportional to 21,693.49, 29,937.40 and 12,262.05

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Solution

The fourth proportional to 21,693.49, 29,937.40 and 12,262.05 is: 16,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,693.49 : 29,937.40 = 12,262.05 : x
  2. Step 2: Convert to fraction form
    21,693.49/29,937.40 = 12,262.05/x
  3. Step 3: Cross multiply
    21,693.49x = 29,937.40 × 12,262.05
  4. Step 4: Simplify right side
    21,693.49x = 367,093,865.01
  5. Step 5: Solve for x
    x = 367,093,865.01/21,693.49
  6. Step 6: Final answer
    x = 16,921.85

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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.