Home / 23,130.25-31,919.75-12,519.97

Finding the Fourth Proportional to 23,130.25, 31,919.75 and 12,519.97

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Solution

The fourth proportional to 23,130.25, 31,919.75 and 12,519.97 is: 17,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.25 : 31,919.75 = 12,519.97 : x
  2. Step 2: Convert to fraction form
    23,130.25/31,919.75 = 12,519.97/x
  3. Step 3: Cross multiply
    23,130.25x = 31,919.75 × 12,519.97
  4. Step 4: Simplify right side
    23,130.25x = 399,634,312.41
  5. Step 5: Solve for x
    x = 399,634,312.41/23,130.25
  6. Step 6: Final answer
    x = 17,277.56

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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.