Home / 31,847.64-47,774.49-13,128.93

Finding the Fourth Proportional to 31,847.64, 47,774.49 and 13,128.93

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Solution

The fourth proportional to 31,847.64, 47,774.49 and 13,128.93 is: 19,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,847.64 : 47,774.49 = 13,128.93 : x
  2. Step 2: Convert to fraction form
    31,847.64/47,774.49 = 13,128.93/x
  3. Step 3: Cross multiply
    31,847.64x = 47,774.49 × 13,128.93
  4. Step 4: Simplify right side
    31,847.64x = 627,227,935.00
  5. Step 5: Solve for x
    x = 627,227,935.00/31,847.64
  6. Step 6: Final answer
    x = 19,694.64

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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.