Home / 20,020.59-27,628.29-11,406.87

Finding the Fourth Proportional to 20,020.59, 27,628.29 and 11,406.87

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Solution

The fourth proportional to 20,020.59, 27,628.29 and 11,406.87 is: 15,741.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.59 : 27,628.29 = 11,406.87 : x
  2. Step 2: Convert to fraction form
    20,020.59/27,628.29 = 11,406.87/x
  3. Step 3: Cross multiply
    20,020.59x = 27,628.29 × 11,406.87
  4. Step 4: Simplify right side
    20,020.59x = 315,152,312.35
  5. Step 5: Solve for x
    x = 315,152,312.35/20,020.59
  6. Step 6: Final answer
    x = 15,741.41

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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.