Home / 31,704.36-47,569.89-13,925.88

Finding the Fourth Proportional to 31,704.36, 47,569.89 and 13,925.88

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Solution

The fourth proportional to 31,704.36, 47,569.89 and 13,925.88 is: 20,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,704.36 : 47,569.89 = 13,925.88 : x
  2. Step 2: Convert to fraction form
    31,704.36/47,569.89 = 13,925.88/x
  3. Step 3: Cross multiply
    31,704.36x = 47,569.89 × 13,925.88
  4. Step 4: Simplify right side
    31,704.36x = 662,452,579.75
  5. Step 5: Solve for x
    x = 662,452,579.75/31,704.36
  6. Step 6: Final answer
    x = 20,894.68

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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.