Home / 27,812.34-38,380.23-15,236.82

Finding the Fourth Proportional to 27,812.34, 38,380.23 and 15,236.82

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Solution

The fourth proportional to 27,812.34, 38,380.23 and 15,236.82 is: 21,026.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,812.34 : 38,380.23 = 15,236.82 : x
  2. Step 2: Convert to fraction form
    27,812.34/38,380.23 = 15,236.82/x
  3. Step 3: Cross multiply
    27,812.34x = 38,380.23 × 15,236.82
  4. Step 4: Simplify right side
    27,812.34x = 584,792,656.07
  5. Step 5: Solve for x
    x = 584,792,656.07/27,812.34
  6. Step 6: Final answer
    x = 21,026.37

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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.