Home / 31,671.58-47,507.01-12,961.66

Finding the Fourth Proportional to 31,671.58, 47,507.01 and 12,961.66

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Solution

The fourth proportional to 31,671.58, 47,507.01 and 12,961.66 is: 19,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,671.58 : 47,507.01 = 12,961.66 : x
  2. Step 2: Convert to fraction form
    31,671.58/47,507.01 = 12,961.66/x
  3. Step 3: Cross multiply
    31,671.58x = 47,507.01 × 12,961.66
  4. Step 4: Simplify right side
    31,671.58x = 615,769,711.24
  5. Step 5: Solve for x
    x = 615,769,711.24/31,671.58
  6. Step 6: Final answer
    x = 19,442.34

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1.5x scale

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.