Home / 18,983.30-28,475.40-5,835.79

Finding the Fourth Proportional to 18,983.30, 28,475.40 and 5,835.79

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Solution

The fourth proportional to 18,983.30, 28,475.40 and 5,835.79 is: 8,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.30 : 28,475.40 = 5,835.79 : x
  2. Step 2: Convert to fraction form
    18,983.30/28,475.40 = 5,835.79/x
  3. Step 3: Cross multiply
    18,983.30x = 28,475.40 × 5,835.79
  4. Step 4: Simplify right side
    18,983.30x = 166,176,312.19
  5. Step 5: Solve for x
    x = 166,176,312.19/18,983.30
  6. Step 6: Final answer
    x = 8,753.82

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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.