Home / 23,161.88-31,929.93-15,190.28

Finding the Fourth Proportional to 23,161.88, 31,929.93 and 15,190.28

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Solution

The fourth proportional to 23,161.88, 31,929.93 and 15,190.28 is: 20,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,161.88 : 31,929.93 = 15,190.28 : x
  2. Step 2: Convert to fraction form
    23,161.88/31,929.93 = 15,190.28/x
  3. Step 3: Cross multiply
    23,161.88x = 31,929.93 × 15,190.28
  4. Step 4: Simplify right side
    23,161.88x = 485,024,577.08
  5. Step 5: Solve for x
    x = 485,024,577.08/23,161.88
  6. Step 6: Final answer
    x = 20,940.64

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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.