Home / 23,130.09-31,919.52-12,519.72

Finding the Fourth Proportional to 23,130.09, 31,919.52 and 12,519.72

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Solution

The fourth proportional to 23,130.09, 31,919.52 and 12,519.72 is: 17,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.09 : 31,919.52 = 12,519.72 : x
  2. Step 2: Convert to fraction form
    23,130.09/31,919.52 = 12,519.72/x
  3. Step 3: Cross multiply
    23,130.09x = 31,919.52 × 12,519.72
  4. Step 4: Simplify right side
    23,130.09x = 399,623,491.52
  5. Step 5: Solve for x
    x = 399,623,491.52/23,130.09
  6. Step 6: Final answer
    x = 17,277.21

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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.