Home / 10,423.80-15,638.13-3,028.41

Finding the Fourth Proportional to 10,423.80, 15,638.13 and 3,028.41

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Solution

The fourth proportional to 10,423.80, 15,638.13 and 3,028.41 is: 4,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,423.80 : 15,638.13 = 3,028.41 : x
  2. Step 2: Convert to fraction form
    10,423.80/15,638.13 = 3,028.41/x
  3. Step 3: Cross multiply
    10,423.80x = 15,638.13 × 3,028.41
  4. Step 4: Simplify right side
    10,423.80x = 47,358,669.27
  5. Step 5: Solve for x
    x = 47,358,669.27/10,423.80
  6. Step 6: Final answer
    x = 4,543.32

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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.