Home / 31,641.64-47,467.92-12,931.85

Finding the Fourth Proportional to 31,641.64, 47,467.92 and 12,931.85

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Solution

The fourth proportional to 31,641.64, 47,467.92 and 12,931.85 is: 19,400.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,641.64 : 47,467.92 = 12,931.85 : x
  2. Step 2: Convert to fraction form
    31,641.64/47,467.92 = 12,931.85/x
  3. Step 3: Cross multiply
    31,641.64x = 47,467.92 × 12,931.85
  4. Step 4: Simplify right side
    31,641.64x = 613,848,188.42
  5. Step 5: Solve for x
    x = 613,848,188.42/31,641.64
  6. Step 6: Final answer
    x = 19,400.01

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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.