Home / 15,971.31-23,958.18-5,438.07

Finding the Fourth Proportional to 15,971.31, 23,958.18 and 5,438.07

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Solution

The fourth proportional to 15,971.31, 23,958.18 and 5,438.07 is: 8,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.31 : 23,958.18 = 5,438.07 : x
  2. Step 2: Convert to fraction form
    15,971.31/23,958.18 = 5,438.07/x
  3. Step 3: Cross multiply
    15,971.31x = 23,958.18 × 5,438.07
  4. Step 4: Simplify right side
    15,971.31x = 130,286,259.91
  5. Step 5: Solve for x
    x = 130,286,259.91/15,971.31
  6. Step 6: Final answer
    x = 8,157.52

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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.