Home / 20,030.73-27,640.62-11,530.59

Finding the Fourth Proportional to 20,030.73, 27,640.62 and 11,530.59

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Solution

The fourth proportional to 20,030.73, 27,640.62 and 11,530.59 is: 15,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.73 : 27,640.62 = 11,530.59 : x
  2. Step 2: Convert to fraction form
    20,030.73/27,640.62 = 11,530.59/x
  3. Step 3: Cross multiply
    20,030.73x = 27,640.62 × 11,530.59
  4. Step 4: Simplify right side
    20,030.73x = 318,712,656.57
  5. Step 5: Solve for x
    x = 318,712,656.57/20,030.73
  6. Step 6: Final answer
    x = 15,911.19

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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.