Home / 20,062.69-27,686.51-11,679.19

Finding the Fourth Proportional to 20,062.69, 27,686.51 and 11,679.19

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Solution

The fourth proportional to 20,062.69, 27,686.51 and 11,679.19 is: 16,117.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.69 : 27,686.51 = 11,679.19 : x
  2. Step 2: Convert to fraction form
    20,062.69/27,686.51 = 11,679.19/x
  3. Step 3: Cross multiply
    20,062.69x = 27,686.51 × 11,679.19
  4. Step 4: Simplify right side
    20,062.69x = 323,355,926.91
  5. Step 5: Solve for x
    x = 323,355,926.91/20,062.69
  6. Step 6: Final answer
    x = 16,117.28

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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.