Home / 28,035.66-38,689.50-15,460.86

Finding the Fourth Proportional to 28,035.66, 38,689.50 and 15,460.86

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Solution

The fourth proportional to 28,035.66, 38,689.50 and 15,460.86 is: 21,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.66 : 38,689.50 = 15,460.86 : x
  2. Step 2: Convert to fraction form
    28,035.66/38,689.50 = 15,460.86/x
  3. Step 3: Cross multiply
    28,035.66x = 38,689.50 × 15,460.86
  4. Step 4: Simplify right side
    28,035.66x = 598,172,942.97
  5. Step 5: Solve for x
    x = 598,172,942.97/28,035.66
  6. Step 6: Final answer
    x = 21,336.15

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1.5x scale

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.