Home / 31,468.64-47,125.12-19,746.40

Finding the Fourth Proportional to 31,468.64, 47,125.12 and 19,746.40

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Solution

The fourth proportional to 31,468.64, 47,125.12 and 19,746.40 is: 29,570.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,468.64 : 47,125.12 = 19,746.40 : x
  2. Step 2: Convert to fraction form
    31,468.64/47,125.12 = 19,746.40/x
  3. Step 3: Cross multiply
    31,468.64x = 47,125.12 × 19,746.40
  4. Step 4: Simplify right side
    31,468.64x = 930,551,469.57
  5. Step 5: Solve for x
    x = 930,551,469.57/31,468.64
  6. Step 6: Final answer
    x = 29,570.76

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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.