Home / 23,169.44-31,968.47-15,629.76

Finding the Fourth Proportional to 23,169.44, 31,968.47 and 15,629.76

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Solution

The fourth proportional to 23,169.44, 31,968.47 and 15,629.76 is: 21,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,169.44 : 31,968.47 = 15,629.76 : x
  2. Step 2: Convert to fraction form
    23,169.44/31,968.47 = 15,629.76/x
  3. Step 3: Cross multiply
    23,169.44x = 31,968.47 × 15,629.76
  4. Step 4: Simplify right side
    23,169.44x = 499,659,552.74
  5. Step 5: Solve for x
    x = 499,659,552.74/23,169.44
  6. Step 6: Final answer
    x = 21,565.45

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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.