Home / 20,113.34-27,756.46-11,160.87

Finding the Fourth Proportional to 20,113.34, 27,756.46 and 11,160.87

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Solution

The fourth proportional to 20,113.34, 27,756.46 and 11,160.87 is: 15,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.34 : 27,756.46 = 11,160.87 : x
  2. Step 2: Convert to fraction form
    20,113.34/27,756.46 = 11,160.87/x
  3. Step 3: Cross multiply
    20,113.34x = 27,756.46 × 11,160.87
  4. Step 4: Simplify right side
    20,113.34x = 309,786,088.80
  5. Step 5: Solve for x
    x = 309,786,088.80/20,113.34
  6. Step 6: Final answer
    x = 15,402.02

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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.