Home / 31,708.64-47,520.97-16,885.64

Finding the Fourth Proportional to 31,708.64, 47,520.97 and 16,885.64

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Solution

The fourth proportional to 31,708.64, 47,520.97 and 16,885.64 is: 25,306.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.64 : 47,520.97 = 16,885.64 : x
  2. Step 2: Convert to fraction form
    31,708.64/47,520.97 = 16,885.64/x
  3. Step 3: Cross multiply
    31,708.64x = 47,520.97 × 16,885.64
  4. Step 4: Simplify right side
    31,708.64x = 802,421,991.87
  5. Step 5: Solve for x
    x = 802,421,991.87/31,708.64
  6. Step 6: Final answer
    x = 25,306.10

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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.