Home / 31,200.28-46,808.63-11,211.79

Finding the Fourth Proportional to 31,200.28, 46,808.63 and 11,211.79

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Solution

The fourth proportional to 31,200.28, 46,808.63 and 11,211.79 is: 16,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,200.28 : 46,808.63 = 11,211.79 : x
  2. Step 2: Convert to fraction form
    31,200.28/46,808.63 = 11,211.79/x
  3. Step 3: Cross multiply
    31,200.28x = 46,808.63 × 11,211.79
  4. Step 4: Simplify right side
    31,200.28x = 524,808,529.75
  5. Step 5: Solve for x
    x = 524,808,529.75/31,200.28
  6. Step 6: Final answer
    x = 16,820.64

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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.