Home / 28,647.29-42,962.63-12,006.86

Finding the Fourth Proportional to 28,647.29, 42,962.63 and 12,006.86

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Solution

The fourth proportional to 28,647.29, 42,962.63 and 12,006.86 is: 18,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.29 : 42,962.63 = 12,006.86 : x
  2. Step 2: Convert to fraction form
    28,647.29/42,962.63 = 12,006.86/x
  3. Step 3: Cross multiply
    28,647.29x = 42,962.63 × 12,006.86
  4. Step 4: Simplify right side
    28,647.29x = 515,846,008.79
  5. Step 5: Solve for x
    x = 515,846,008.79/28,647.29
  6. Step 6: Final answer
    x = 18,006.80

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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.