Home / 31,986.72-47,983.28-9,799.84

Finding the Fourth Proportional to 31,986.72, 47,983.28 and 9,799.84

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Solution

The fourth proportional to 31,986.72, 47,983.28 and 9,799.84 is: 14,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986.72 : 47,983.28 = 9,799.84 : x
  2. Step 2: Convert to fraction form
    31,986.72/47,983.28 = 9,799.84/x
  3. Step 3: Cross multiply
    31,986.72x = 47,983.28 × 9,799.84
  4. Step 4: Simplify right side
    31,986.72x = 470,228,466.68
  5. Step 5: Solve for x
    x = 470,228,466.68/31,986.72
  6. Step 6: Final answer
    x = 14,700.74

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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.