Home / 10,020.85-15,029.28-2,905.92

Finding the Fourth Proportional to 10,020.85, 15,029.28 and 2,905.92

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Solution

The fourth proportional to 10,020.85, 15,029.28 and 2,905.92 is: 4,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.85 : 15,029.28 = 2,905.92 : x
  2. Step 2: Convert to fraction form
    10,020.85/15,029.28 = 2,905.92/x
  3. Step 3: Cross multiply
    10,020.85x = 15,029.28 × 2,905.92
  4. Step 4: Simplify right side
    10,020.85x = 43,673,885.34
  5. Step 5: Solve for x
    x = 43,673,885.34/10,020.85
  6. Step 6: Final answer
    x = 4,358.30

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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.