Home / 18,731.52-25,852.08-11,833.20

Finding the Fourth Proportional to 18,731.52, 25,852.08 and 11,833.20

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Solution

The fourth proportional to 18,731.52, 25,852.08 and 11,833.20 is: 16,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.52 : 25,852.08 = 11,833.20 : x
  2. Step 2: Convert to fraction form
    18,731.52/25,852.08 = 11,833.20/x
  3. Step 3: Cross multiply
    18,731.52x = 25,852.08 × 11,833.20
  4. Step 4: Simplify right side
    18,731.52x = 305,912,833.06
  5. Step 5: Solve for x
    x = 305,912,833.06/18,731.52
  6. Step 6: Final answer
    x = 16,331.45

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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.