Home / 31,713.30-47,575.35-10,931.94

Finding the Fourth Proportional to 31,713.30, 47,575.35 and 10,931.94

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Solution

The fourth proportional to 31,713.30, 47,575.35 and 10,931.94 is: 16,399.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,713.30 : 47,575.35 = 10,931.94 : x
  2. Step 2: Convert to fraction form
    31,713.30/47,575.35 = 10,931.94/x
  3. Step 3: Cross multiply
    31,713.30x = 47,575.35 × 10,931.94
  4. Step 4: Simplify right side
    31,713.30x = 520,090,871.68
  5. Step 5: Solve for x
    x = 520,090,871.68/31,713.30
  6. Step 6: Final answer
    x = 16,399.77

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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.