Home / 23,081.02-31,843.20-15,515.36

Finding the Fourth Proportional to 23,081.02, 31,843.20 and 15,515.36

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Solution

The fourth proportional to 23,081.02, 31,843.20 and 15,515.36 is: 21,405.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,081.02 : 31,843.20 = 15,515.36 : x
  2. Step 2: Convert to fraction form
    23,081.02/31,843.20 = 15,515.36/x
  3. Step 3: Cross multiply
    23,081.02x = 31,843.20 × 15,515.36
  4. Step 4: Simplify right side
    23,081.02x = 494,058,711.55
  5. Step 5: Solve for x
    x = 494,058,711.55/23,081.02
  6. Step 6: Final answer
    x = 21,405.41

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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.