Home / 25,678.38-38,507.85-10,087.50

Finding the Fourth Proportional to 25,678.38, 38,507.85 and 10,087.50

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Solution

The fourth proportional to 25,678.38, 38,507.85 and 10,087.50 is: 15,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,678.38 : 38,507.85 = 10,087.50 : x
  2. Step 2: Convert to fraction form
    25,678.38/38,507.85 = 10,087.50/x
  3. Step 3: Cross multiply
    25,678.38x = 38,507.85 × 10,087.50
  4. Step 4: Simplify right side
    25,678.38x = 388,447,936.88
  5. Step 5: Solve for x
    x = 388,447,936.88/25,678.38
  6. Step 6: Final answer
    x = 15,127.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.