Home / 20,095.24-27,731.82-12,135.79

Finding the Fourth Proportional to 20,095.24, 27,731.82 and 12,135.79

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Solution

The fourth proportional to 20,095.24, 27,731.82 and 12,135.79 is: 16,747.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.24 : 27,731.82 = 12,135.79 : x
  2. Step 2: Convert to fraction form
    20,095.24/27,731.82 = 12,135.79/x
  3. Step 3: Cross multiply
    20,095.24x = 27,731.82 × 12,135.79
  4. Step 4: Simplify right side
    20,095.24x = 336,547,543.84
  5. Step 5: Solve for x
    x = 336,547,543.84/20,095.24
  6. Step 6: Final answer
    x = 16,747.63

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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.