Home / 20,113.41-27,756.68-12,160.94

Finding the Fourth Proportional to 20,113.41, 27,756.68 and 12,160.94

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Solution

The fourth proportional to 20,113.41, 27,756.68 and 12,160.94 is: 16,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.41 : 27,756.68 = 12,160.94 : x
  2. Step 2: Convert to fraction form
    20,113.41/27,756.68 = 12,160.94/x
  3. Step 3: Cross multiply
    20,113.41x = 27,756.68 × 12,160.94
  4. Step 4: Simplify right side
    20,113.41x = 337,547,120.49
  5. Step 5: Solve for x
    x = 337,547,120.49/20,113.41
  6. Step 6: Final answer
    x = 16,782.19

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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.