Home / 25,438.72-38,143.47-23,971

Finding the Fourth Proportional to 25,438.72, 38,143.47 and 23,971

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Solution

The fourth proportional to 25,438.72, 38,143.47 and 23,971 is: 35,942.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,438.72 : 38,143.47 = 23,971 : x
  2. Step 2: Convert to fraction form
    25,438.72/38,143.47 = 23,971/x
  3. Step 3: Cross multiply
    25,438.72x = 38,143.47 × 23,971
  4. Step 4: Simplify right side
    25,438.72x = 914,337,119.37
  5. Step 5: Solve for x
    x = 914,337,119.37/25,438.72
  6. Step 6: Final answer
    x = 35,942.73

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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.