Home / 23,139.45-31,932.41-12,529.08

Finding the Fourth Proportional to 23,139.45, 31,932.41 and 12,529.08

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Solution

The fourth proportional to 23,139.45, 31,932.41 and 12,529.08 is: 17,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,139.45 : 31,932.41 = 12,529.08 : x
  2. Step 2: Convert to fraction form
    23,139.45/31,932.41 = 12,529.08/x
  3. Step 3: Cross multiply
    23,139.45x = 31,932.41 × 12,529.08
  4. Step 4: Simplify right side
    23,139.45x = 400,083,656.84
  5. Step 5: Solve for x
    x = 400,083,656.84/23,139.45
  6. Step 6: Final answer
    x = 17,290.11

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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.