Home / 19,742.09-27,241.40-11,358.59

Finding the Fourth Proportional to 19,742.09, 27,241.40 and 11,358.59

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Solution

The fourth proportional to 19,742.09, 27,241.40 and 11,358.59 is: 15,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.09 : 27,241.40 = 11,358.59 : x
  2. Step 2: Convert to fraction form
    19,742.09/27,241.40 = 11,358.59/x
  3. Step 3: Cross multiply
    19,742.09x = 27,241.40 × 11,358.59
  4. Step 4: Simplify right side
    19,742.09x = 309,423,836.83
  5. Step 5: Solve for x
    x = 309,423,836.83/19,742.09
  6. Step 6: Final answer
    x = 15,673.31

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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.