Home / 10,428.98-15,639.68-3,031.46

Finding the Fourth Proportional to 10,428.98, 15,639.68 and 3,031.46

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Solution

The fourth proportional to 10,428.98, 15,639.68 and 3,031.46 is: 4,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.98 : 15,639.68 = 3,031.46 : x
  2. Step 2: Convert to fraction form
    10,428.98/15,639.68 = 3,031.46/x
  3. Step 3: Cross multiply
    10,428.98x = 15,639.68 × 3,031.46
  4. Step 4: Simplify right side
    10,428.98x = 47,411,064.33
  5. Step 5: Solve for x
    x = 47,411,064.33/10,428.98
  6. Step 6: Final answer
    x = 4,546.09

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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.