Home / 27,555.93-38,029.15-15,917.64

Finding the Fourth Proportional to 27,555.93, 38,029.15 and 15,917.64

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Solution

The fourth proportional to 27,555.93, 38,029.15 and 15,917.64 is: 21,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555.93 : 38,029.15 = 15,917.64 : x
  2. Step 2: Convert to fraction form
    27,555.93/38,029.15 = 15,917.64/x
  3. Step 3: Cross multiply
    27,555.93x = 38,029.15 × 15,917.64
  4. Step 4: Simplify right side
    27,555.93x = 605,334,239.62
  5. Step 5: Solve for x
    x = 605,334,239.62/27,555.93
  6. Step 6: Final answer
    x = 21,967.48

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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.