Home / 20,151.77-30,219.75-11,833.88

Finding the Fourth Proportional to 20,151.77, 30,219.75 and 11,833.88

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Solution

The fourth proportional to 20,151.77, 30,219.75 and 11,833.88 is: 17,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.77 : 30,219.75 = 11,833.88 : x
  2. Step 2: Convert to fraction form
    20,151.77/30,219.75 = 11,833.88/x
  3. Step 3: Cross multiply
    20,151.77x = 30,219.75 × 11,833.88
  4. Step 4: Simplify right side
    20,151.77x = 357,616,744.03
  5. Step 5: Solve for x
    x = 357,616,744.03/20,151.77
  6. Step 6: Final answer
    x = 17,746.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.