Home / 20,114.04-27,756.59-11,160.91

Finding the Fourth Proportional to 20,114.04, 27,756.59 and 11,160.91

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Solution

The fourth proportional to 20,114.04, 27,756.59 and 11,160.91 is: 15,401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.04 : 27,756.59 = 11,160.91 : x
  2. Step 2: Convert to fraction form
    20,114.04/27,756.59 = 11,160.91/x
  3. Step 3: Cross multiply
    20,114.04x = 27,756.59 × 11,160.91
  4. Step 4: Simplify right side
    20,114.04x = 309,788,802.90
  5. Step 5: Solve for x
    x = 309,788,802.90/20,114.04
  6. Step 6: Final answer
    x = 15,401.62

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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.