Home / 31,288.36-46,932.50-12,568.40

Finding the Fourth Proportional to 31,288.36, 46,932.50 and 12,568.40

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Solution

The fourth proportional to 31,288.36, 46,932.50 and 12,568.40 is: 18,852.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,288.36 : 46,932.50 = 12,568.40 : x
  2. Step 2: Convert to fraction form
    31,288.36/46,932.50 = 12,568.40/x
  3. Step 3: Cross multiply
    31,288.36x = 46,932.50 × 12,568.40
  4. Step 4: Simplify right side
    31,288.36x = 589,866,229.76
  5. Step 5: Solve for x
    x = 589,866,229.76/31,288.36
  6. Step 6: Final answer
    x = 18,852.58

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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.