Home / 34,728.12-47,924.76-18,812.64

Finding the Fourth Proportional to 34,728.12, 47,924.76 and 18,812.64

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Solution

The fourth proportional to 34,728.12, 47,924.76 and 18,812.64 is: 25,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,728.12 : 47,924.76 = 18,812.64 : x
  2. Step 2: Convert to fraction form
    34,728.12/47,924.76 = 18,812.64/x
  3. Step 3: Cross multiply
    34,728.12x = 47,924.76 × 18,812.64
  4. Step 4: Simplify right side
    34,728.12x = 901,591,256.97
  5. Step 5: Solve for x
    x = 901,591,256.97/34,728.12
  6. Step 6: Final answer
    x = 25,961.42

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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.