Home / 18,621.19-27,935.70-5,472.46

Finding the Fourth Proportional to 18,621.19, 27,935.70 and 5,472.46

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Solution

The fourth proportional to 18,621.19, 27,935.70 and 5,472.46 is: 8,209.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.19 : 27,935.70 = 5,472.46 : x
  2. Step 2: Convert to fraction form
    18,621.19/27,935.70 = 5,472.46/x
  3. Step 3: Cross multiply
    18,621.19x = 27,935.70 × 5,472.46
  4. Step 4: Simplify right side
    18,621.19x = 152,877,000.82
  5. Step 5: Solve for x
    x = 152,877,000.82/18,621.19
  6. Step 6: Final answer
    x = 8,209.84

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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.