Home / 23,987.61-33,111.36-15,811.86

Finding the Fourth Proportional to 23,987.61, 33,111.36 and 15,811.86

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Solution

The fourth proportional to 23,987.61, 33,111.36 and 15,811.86 is: 21,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,987.61 : 33,111.36 = 15,811.86 : x
  2. Step 2: Convert to fraction form
    23,987.61/33,111.36 = 15,811.86/x
  3. Step 3: Cross multiply
    23,987.61x = 33,111.36 × 15,811.86
  4. Step 4: Simplify right side
    23,987.61x = 523,552,188.73
  5. Step 5: Solve for x
    x = 523,552,188.73/23,987.61
  6. Step 6: Final answer
    x = 21,825.94

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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.