Home / 23,130.21-31,919.76-12,519.93

Finding the Fourth Proportional to 23,130.21, 31,919.76 and 12,519.93

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Solution

The fourth proportional to 23,130.21, 31,919.76 and 12,519.93 is: 17,277.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.21 : 31,919.76 = 12,519.93 : x
  2. Step 2: Convert to fraction form
    23,130.21/31,919.76 = 12,519.93/x
  3. Step 3: Cross multiply
    23,130.21x = 31,919.76 × 12,519.93
  4. Step 4: Simplify right side
    23,130.21x = 399,633,160.82
  5. Step 5: Solve for x
    x = 399,633,160.82/23,130.21
  6. Step 6: Final answer
    x = 17,277.54

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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.