Home / 28,818.16-39,766.68-16,246

Finding the Fourth Proportional to 28,818.16, 39,766.68 and 16,246

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Solution

The fourth proportional to 28,818.16, 39,766.68 and 16,246 is: 22,418.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.16 : 39,766.68 = 16,246 : x
  2. Step 2: Convert to fraction form
    28,818.16/39,766.68 = 16,246/x
  3. Step 3: Cross multiply
    28,818.16x = 39,766.68 × 16,246
  4. Step 4: Simplify right side
    28,818.16x = 646,049,483.28
  5. Step 5: Solve for x
    x = 646,049,483.28/28,818.16
  6. Step 6: Final answer
    x = 22,418.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.