Home / 27,932.64-38,545.76-15,357.36

Finding the Fourth Proportional to 27,932.64, 38,545.76 and 15,357.36

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Solution

The fourth proportional to 27,932.64, 38,545.76 and 15,357.36 is: 21,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,932.64 : 38,545.76 = 15,357.36 : x
  2. Step 2: Convert to fraction form
    27,932.64/38,545.76 = 15,357.36/x
  3. Step 3: Cross multiply
    27,932.64x = 38,545.76 × 15,357.36
  4. Step 4: Simplify right side
    27,932.64x = 591,961,112.79
  5. Step 5: Solve for x
    x = 591,961,112.79/27,932.64
  6. Step 6: Final answer
    x = 21,192.45

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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.