Home / 25,270-34,871.88-13,939.54

Finding the Fourth Proportional to 25,270, 34,871.88 and 13,939.54

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Solution

The fourth proportional to 25,270, 34,871.88 and 13,939.54 is: 19,236.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,270 : 34,871.88 = 13,939.54 : x
  2. Step 2: Convert to fraction form
    25,270/34,871.88 = 13,939.54/x
  3. Step 3: Cross multiply
    25,270x = 34,871.88 × 13,939.54
  4. Step 4: Simplify right side
    25,270x = 486,097,966.14
  5. Step 5: Solve for x
    x = 486,097,966.14/25,270
  6. Step 6: Final answer
    x = 19,236.17

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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.