Home / 31,847.64-47,774.48-13,128.92

Finding the Fourth Proportional to 31,847.64, 47,774.48 and 13,128.92

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Solution

The fourth proportional to 31,847.64, 47,774.48 and 13,128.92 is: 19,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,847.64 : 47,774.48 = 13,128.92 : x
  2. Step 2: Convert to fraction form
    31,847.64/47,774.48 = 13,128.92/x
  3. Step 3: Cross multiply
    31,847.64x = 47,774.48 × 13,128.92
  4. Step 4: Simplify right side
    31,847.64x = 627,227,325.96
  5. Step 5: Solve for x
    x = 627,227,325.96/31,847.64
  6. Step 6: Final answer
    x = 19,694.62

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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.