Home / 10,428.32-15,644.01-3,031.82

Finding the Fourth Proportional to 10,428.32, 15,644.01 and 3,031.82

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Solution

The fourth proportional to 10,428.32, 15,644.01 and 3,031.82 is: 4,548.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.32 : 15,644.01 = 3,031.82 : x
  2. Step 2: Convert to fraction form
    10,428.32/15,644.01 = 3,031.82/x
  3. Step 3: Cross multiply
    10,428.32x = 15,644.01 × 3,031.82
  4. Step 4: Simplify right side
    10,428.32x = 47,429,744.18
  5. Step 5: Solve for x
    x = 47,429,744.18/10,428.32
  6. Step 6: Final answer
    x = 4,548.17

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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.