Home / 31,719.64-47,564.55-18,396.42

Finding the Fourth Proportional to 31,719.64, 47,564.55 and 18,396.42

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Solution

The fourth proportional to 31,719.64, 47,564.55 and 18,396.42 is: 27,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.64 : 47,564.55 = 18,396.42 : x
  2. Step 2: Convert to fraction form
    31,719.64/47,564.55 = 18,396.42/x
  3. Step 3: Cross multiply
    31,719.64x = 47,564.55 × 18,396.42
  4. Step 4: Simplify right side
    31,719.64x = 875,017,438.91
  5. Step 5: Solve for x
    x = 875,017,438.91/31,719.64
  6. Step 6: Final answer
    x = 27,585.98

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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.