Home / 31,497.42-47,239.64-13,956.06

Finding the Fourth Proportional to 31,497.42, 47,239.64 and 13,956.06

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Solution

The fourth proportional to 31,497.42, 47,239.64 and 13,956.06 is: 20,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,497.42 : 47,239.64 = 13,956.06 : x
  2. Step 2: Convert to fraction form
    31,497.42/47,239.64 = 13,956.06/x
  3. Step 3: Cross multiply
    31,497.42x = 47,239.64 × 13,956.06
  4. Step 4: Simplify right side
    31,497.42x = 659,279,250.22
  5. Step 5: Solve for x
    x = 659,279,250.22/31,497.42
  6. Step 6: Final answer
    x = 20,931.21

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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.