Home / 20,020.80-27,628.29-11,068.68

Finding the Fourth Proportional to 20,020.80, 27,628.29 and 11,068.68

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Solution

The fourth proportional to 20,020.80, 27,628.29 and 11,068.68 is: 15,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.80 : 27,628.29 = 11,068.68 : x
  2. Step 2: Convert to fraction form
    20,020.80/27,628.29 = 11,068.68/x
  3. Step 3: Cross multiply
    20,020.80x = 27,628.29 × 11,068.68
  4. Step 4: Simplify right side
    20,020.80x = 305,808,700.96
  5. Step 5: Solve for x
    x = 305,808,700.96/20,020.80
  6. Step 6: Final answer
    x = 15,274.55

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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.