Home / 18,705.10-25,822.30-14,664.82

Finding the Fourth Proportional to 18,705.10, 25,822.30 and 14,664.82

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Solution

The fourth proportional to 18,705.10, 25,822.30 and 14,664.82 is: 20,244.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.10 : 25,822.30 = 14,664.82 : x
  2. Step 2: Convert to fraction form
    18,705.10/25,822.30 = 14,664.82/x
  3. Step 3: Cross multiply
    18,705.10x = 25,822.30 × 14,664.82
  4. Step 4: Simplify right side
    18,705.10x = 378,679,381.49
  5. Step 5: Solve for x
    x = 378,679,381.49/18,705.10
  6. Step 6: Final answer
    x = 20,244.71

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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.