Home / 31,257.24-46,889.50-12,543.80

Finding the Fourth Proportional to 31,257.24, 46,889.50 and 12,543.80

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Solution

The fourth proportional to 31,257.24, 46,889.50 and 12,543.80 is: 18,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.24 : 46,889.50 = 12,543.80 : x
  2. Step 2: Convert to fraction form
    31,257.24/46,889.50 = 12,543.80/x
  3. Step 3: Cross multiply
    31,257.24x = 46,889.50 × 12,543.80
  4. Step 4: Simplify right side
    31,257.24x = 588,172,510.10
  5. Step 5: Solve for x
    x = 588,172,510.10/31,257.24
  6. Step 6: Final answer
    x = 18,817.16

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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.