Home / 28,929.93-43,390.02-8,148.57

Finding the Fourth Proportional to 28,929.93, 43,390.02 and 8,148.57

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Solution

The fourth proportional to 28,929.93, 43,390.02 and 8,148.57 is: 12,221.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929.93 : 43,390.02 = 8,148.57 : x
  2. Step 2: Convert to fraction form
    28,929.93/43,390.02 = 8,148.57/x
  3. Step 3: Cross multiply
    28,929.93x = 43,390.02 × 8,148.57
  4. Step 4: Simplify right side
    28,929.93x = 353,566,615.27
  5. Step 5: Solve for x
    x = 353,566,615.27/28,929.93
  6. Step 6: Final answer
    x = 12,221.48

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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.