Home / 28,271.20-42,367.56-12,452.51

Finding the Fourth Proportional to 28,271.20, 42,367.56 and 12,452.51

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Solution

The fourth proportional to 28,271.20, 42,367.56 and 12,452.51 is: 18,661.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.20 : 42,367.56 = 12,452.51 : x
  2. Step 2: Convert to fraction form
    28,271.20/42,367.56 = 12,452.51/x
  3. Step 3: Cross multiply
    28,271.20x = 42,367.56 × 12,452.51
  4. Step 4: Simplify right side
    28,271.20x = 527,582,252.74
  5. Step 5: Solve for x
    x = 527,582,252.74/28,271.20
  6. Step 6: Final answer
    x = 18,661.48

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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.