Home / 28,233.59-38,961.37-15,659.51

Finding the Fourth Proportional to 28,233.59, 38,961.37 and 15,659.51

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Solution

The fourth proportional to 28,233.59, 38,961.37 and 15,659.51 is: 21,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.59 : 38,961.37 = 15,659.51 : x
  2. Step 2: Convert to fraction form
    28,233.59/38,961.37 = 15,659.51/x
  3. Step 3: Cross multiply
    28,233.59x = 38,961.37 × 15,659.51
  4. Step 4: Simplify right side
    28,233.59x = 610,115,963.13
  5. Step 5: Solve for x
    x = 610,115,963.13/28,233.59
  6. Step 6: Final answer
    x = 21,609.58

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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.