Home / 22,959.99-31,685.18-12,750.75

Finding the Fourth Proportional to 22,959.99, 31,685.18 and 12,750.75

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Solution

The fourth proportional to 22,959.99, 31,685.18 and 12,750.75 is: 17,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,959.99 : 31,685.18 = 12,750.75 : x
  2. Step 2: Convert to fraction form
    22,959.99/31,685.18 = 12,750.75/x
  3. Step 3: Cross multiply
    22,959.99x = 31,685.18 × 12,750.75
  4. Step 4: Simplify right side
    22,959.99x = 404,009,745.13
  5. Step 5: Solve for x
    x = 404,009,745.13/22,959.99
  6. Step 6: Final answer
    x = 17,596.25

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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.