Home / 19,876.51-27,419.48-15,152.59

Finding the Fourth Proportional to 19,876.51, 27,419.48 and 15,152.59

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Solution

The fourth proportional to 19,876.51, 27,419.48 and 15,152.59 is: 20,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,876.51 : 27,419.48 = 15,152.59 : x
  2. Step 2: Convert to fraction form
    19,876.51/27,419.48 = 15,152.59/x
  3. Step 3: Cross multiply
    19,876.51x = 27,419.48 × 15,152.59
  4. Step 4: Simplify right side
    19,876.51x = 415,476,062.69
  5. Step 5: Solve for x
    x = 415,476,062.69/19,876.51
  6. Step 6: Final answer
    x = 20,902.87

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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.